256116420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:215

約数の個数: 288

約数和(自身を含む): 939294720

約数和(自身を除く): 683178300

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 79, 83, 84, 90, 93, 105, 124, 126, 140, 155, 158, 166, 180, 186, 210, 217, 237, 249, 252, 279, 310, 315, 316, 332, 372, 395, 415, 420, 434, 465, 474, 498, 553, 558, 581, 620, 630, 651, 711, 747, 790, 830, 868, 930, 948, 996, 1085, 1106, 1116, 1162, 1185, 1245, 1260, 1302, 1395, 1422, 1494, 1580, 1659, 1660, 1743, 1860, 1953, 2170, 2212, 2324, 2370, 2449, 2490, 2573, 2604, 2765, 2790, 2844, 2905, 2988, 3255, 3318, 3486, 3555, 3735, 3906, 4340, 4740, 4898, 4977, 4980, 5146, 5229, 5530, 5580, 5810, 6510, 6557, 6636, 6972, 7110, 7347, 7470, 7719, 7812, 8295, 8715, 9765, 9796, 9954, 10292, 10458, 11060, 11620, 12245, 12865, 13020, 13114, 14220, 14694, 14940, 15438, 16590, 17143, 17430, 18011, 19530, 19671, 19908, 20916, 22041, 23157, 24490, 24885, 25730, 26145, 26228, 29388, 30876, 32785, 33180, 34286, 34860, 36022, 36735, 38595, 39060, 39342, 44082, 45899, 46314, 48980, 49770, 51429, 51460, 52290, 54033, 59013, 65570, 68572, 72044, 73470, 77190, 78684, 85715, 88164, 90055, 91798, 92628, 98355, 99540, 102858, 104580, 108066, 110205, 115785, 118026, 131140, 137697, 146940, 154287, 154380, 162099, 171430, 180110, 183596, 196710, 203267, 205716, 216132, 220410, 229495, 231570, 236052, 257145, 270165, 275394, 295065, 308574, 324198, 342860, 360220, 393420, 406534, 413091, 440820, 458990, 463140, 514290, 540330, 550788, 590130, 609801, 617148, 648396, 688485, 771435, 810495, 813068, 826182, 917980, 1016335, 1028580, 1080660, 1180260, 1219602, 1376970, 1422869, 1542870, 1620990, 1652364, 1829403, 2032670, 2065455, 2439204, 2753940, 2845738, 3049005, 3085740, 3241980, 3658806, 4065340, 4130910, 4268607, 5691476, 6098010, 7114345, 7317612, 8261820, 8537214, 9147015, 12196020, 12805821, 14228690, 17074428, 18294030, 21343035, 25611642, 28457380, 36588060, 42686070, 51223284, 64029105, 85372140, 128058210, 256116420]

約数ペア:

[(1, 256116420), (2, 128058210), (3, 85372140), (4, 64029105), (5, 51223284), (6, 42686070), (7, 36588060), (9, 28457380), (10, 25611642), (12, 21343035), (14, 18294030), (15, 17074428), (18, 14228690), (20, 12805821), (21, 12196020), (28, 9147015), (30, 8537214), (31, 8261820), (35, 7317612), (36, 7114345), (42, 6098010), (45, 5691476), (60, 4268607), (62, 4130910), (63, 4065340), (70, 3658806), (79, 3241980), (83, 3085740), (84, 3049005), (90, 2845738), (93, 2753940), (105, 2439204), (124, 2065455), (126, 2032670), (140, 1829403), (155, 1652364), (158, 1620990), (166, 1542870), (180, 1422869), (186, 1376970), (210, 1219602), (217, 1180260), (237, 1080660), (249, 1028580), (252, 1016335), (279, 917980), (310, 826182), (315, 813068), (316, 810495), (332, 771435), (372, 688485), (395, 648396), (415, 617148), (420, 609801), (434, 590130), (465, 550788), (474, 540330), (498, 514290), (553, 463140), (558, 458990), (581, 440820), (620, 413091), (630, 406534), (651, 393420), (711, 360220), (747, 342860), (790, 324198), (830, 308574), (868, 295065), (930, 275394), (948, 270165), (996, 257145), (1085, 236052), (1106, 231570), (1116, 229495), (1162, 220410), (1185, 216132), (1245, 205716), (1260, 203267), (1302, 196710), (1395, 183596), (1422, 180110), (1494, 171430), (1580, 162099), (1659, 154380), (1660, 154287), (1743, 146940), (1860, 137697), (1953, 131140), (2170, 118026), (2212, 115785), (2324, 110205), (2370, 108066), (2449, 104580), (2490, 102858), (2573, 99540), (2604, 98355), (2765, 92628), (2790, 91798), (2844, 90055), (2905, 88164), (2988, 85715), (3255, 78684), (3318, 77190), (3486, 73470), (3555, 72044), (3735, 68572), (3906, 65570), (4340, 59013), (4740, 54033), (4898, 52290), (4977, 51460), (4980, 51429), (5146, 49770), (5229, 48980), (5530, 46314), (5580, 45899), (5810, 44082), (6510, 39342), (6557, 39060), (6636, 38595), (6972, 36735), (7110, 36022), (7347, 34860), (7470, 34286), (7719, 33180), (7812, 32785), (8295, 30876), (8715, 29388), (9765, 26228), (9796, 26145), (9954, 25730), (10292, 24885), (10458, 24490), (11060, 23157), (11620, 22041), (12245, 20916), (12865, 19908), (13020, 19671), (13114, 19530), (14220, 18011), (14694, 17430), (14940, 17143), (15438, 16590)]