281877960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{311}}^1$

素因数の和:428

約数の個数: 256

約数和(自身を含む): 1056706560

約数和(自身を除く): 774828600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 83, 84, 91, 104, 105, 120, 130, 140, 156, 166, 168, 182, 195, 210, 249, 260, 273, 280, 311, 312, 332, 364, 390, 415, 420, 455, 498, 520, 546, 581, 622, 664, 728, 780, 830, 840, 910, 933, 996, 1079, 1092, 1162, 1244, 1245, 1365, 1555, 1560, 1660, 1743, 1820, 1866, 1992, 2158, 2177, 2184, 2324, 2488, 2490, 2730, 2905, 3110, 3237, 3320, 3486, 3640, 3732, 4043, 4316, 4354, 4648, 4665, 4980, 5395, 5460, 5810, 6220, 6474, 6531, 6972, 7464, 7553, 8086, 8632, 8708, 8715, 9330, 9960, 10790, 10885, 10920, 11620, 12129, 12440, 12948, 13062, 13944, 15106, 16172, 16185, 17416, 17430, 18660, 20215, 21580, 21770, 22659, 23240, 24258, 25813, 25896, 26124, 28301, 30212, 32344, 32370, 32655, 34860, 37320, 37765, 40430, 43160, 43540, 45318, 48516, 51626, 52248, 56602, 60424, 60645, 64740, 65310, 69720, 75530, 77439, 80860, 84903, 87080, 90636, 97032, 103252, 113204, 113295, 121290, 129065, 129480, 130620, 141505, 151060, 154878, 161720, 169806, 180691, 181272, 206504, 226408, 226590, 242580, 258130, 261240, 283010, 302120, 309756, 335569, 339612, 361382, 387195, 424515, 453180, 485160, 516260, 542073, 566020, 619512, 671138, 679224, 722764, 774390, 849030, 903455, 906360, 1006707, 1032520, 1084146, 1132040, 1342276, 1445528, 1548780, 1677845, 1698060, 1806910, 2013414, 2168292, 2348983, 2684552, 2710365, 3097560, 3355690, 3396120, 3613820, 4026828, 4336584, 4697966, 5033535, 5420730, 6711380, 7046949, 7227640, 8053656, 9395932, 10067070, 10841460, 11744915, 13422760, 14093898, 18791864, 20134140, 21682920, 23489830, 28187796, 35234745, 40268280, 46979660, 56375592, 70469490, 93959320, 140938980, 281877960]

約数ペア:

[(1, 281877960), (2, 140938980), (3, 93959320), (4, 70469490), (5, 56375592), (6, 46979660), (7, 40268280), (8, 35234745), (10, 28187796), (12, 23489830), (13, 21682920), (14, 20134140), (15, 18791864), (20, 14093898), (21, 13422760), (24, 11744915), (26, 10841460), (28, 10067070), (30, 9395932), (35, 8053656), (39, 7227640), (40, 7046949), (42, 6711380), (52, 5420730), (56, 5033535), (60, 4697966), (65, 4336584), (70, 4026828), (78, 3613820), (83, 3396120), (84, 3355690), (91, 3097560), (104, 2710365), (105, 2684552), (120, 2348983), (130, 2168292), (140, 2013414), (156, 1806910), (166, 1698060), (168, 1677845), (182, 1548780), (195, 1445528), (210, 1342276), (249, 1132040), (260, 1084146), (273, 1032520), (280, 1006707), (311, 906360), (312, 903455), (332, 849030), (364, 774390), (390, 722764), (415, 679224), (420, 671138), (455, 619512), (498, 566020), (520, 542073), (546, 516260), (581, 485160), (622, 453180), (664, 424515), (728, 387195), (780, 361382), (830, 339612), (840, 335569), (910, 309756), (933, 302120), (996, 283010), (1079, 261240), (1092, 258130), (1162, 242580), (1244, 226590), (1245, 226408), (1365, 206504), (1555, 181272), (1560, 180691), (1660, 169806), (1743, 161720), (1820, 154878), (1866, 151060), (1992, 141505), (2158, 130620), (2177, 129480), (2184, 129065), (2324, 121290), (2488, 113295), (2490, 113204), (2730, 103252), (2905, 97032), (3110, 90636), (3237, 87080), (3320, 84903), (3486, 80860), (3640, 77439), (3732, 75530), (4043, 69720), (4316, 65310), (4354, 64740), (4648, 60645), (4665, 60424), (4980, 56602), (5395, 52248), (5460, 51626), (5810, 48516), (6220, 45318), (6474, 43540), (6531, 43160), (6972, 40430), (7464, 37765), (7553, 37320), (8086, 34860), (8632, 32655), (8708, 32370), (8715, 32344), (9330, 30212), (9960, 28301), (10790, 26124), (10885, 25896), (10920, 25813), (11620, 24258), (12129, 23240), (12440, 22659), (12948, 21770), (13062, 21580), (13944, 20215), (15106, 18660), (16172, 17430), (16185, 17416)]