278252520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{307}}^1$

素因数の和:424

約数の個数: 256

約数和(自身を含む): 1043159040

約数和(自身を除く): 764906520

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, 307, 312, 332, 364, 390, 415, 420, 455, 498, 520, 546, 581, 614, 664, 728, 780, 830, 840, 910, 921, 996, 1079, 1092, 1162, 1228, 1245, 1365, 1535, 1560, 1660, 1743, 1820, 1842, 1992, 2149, 2158, 2184, 2324, 2456, 2490, 2730, 2905, 3070, 3237, 3320, 3486, 3640, 3684, 3991, 4298, 4316, 4605, 4648, 4980, 5395, 5460, 5810, 6140, 6447, 6474, 6972, 7368, 7553, 7982, 8596, 8632, 8715, 9210, 9960, 10745, 10790, 10920, 11620, 11973, 12280, 12894, 12948, 13944, 15106, 15964, 16185, 17192, 17430, 18420, 19955, 21490, 21580, 22659, 23240, 23946, 25481, 25788, 25896, 27937, 30212, 31928, 32235, 32370, 34860, 36840, 37765, 39910, 42980, 43160, 45318, 47892, 50962, 51576, 55874, 59865, 60424, 64470, 64740, 69720, 75530, 76443, 79820, 83811, 85960, 90636, 95784, 101924, 111748, 113295, 119730, 127405, 128940, 129480, 139685, 151060, 152886, 159640, 167622, 178367, 181272, 203848, 223496, 226590, 239460, 254810, 257880, 279370, 302120, 305772, 331253, 335244, 356734, 382215, 419055, 453180, 478920, 509620, 535101, 558740, 611544, 662506, 670488, 713468, 764430, 838110, 891835, 906360, 993759, 1019240, 1070202, 1117480, 1325012, 1426936, 1528860, 1656265, 1676220, 1783670, 1987518, 2140404, 2318771, 2650024, 2675505, 3057720, 3312530, 3352440, 3567340, 3975036, 4280808, 4637542, 4968795, 5351010, 6625060, 6956313, 7134680, 7950072, 9275084, 9937590, 10702020, 11593855, 13250120, 13912626, 18550168, 19875180, 21404040, 23187710, 27825252, 34781565, 39750360, 46375420, 55650504, 69563130, 92750840, 139126260, 278252520]

約数ペア:

[(1, 278252520), (2, 139126260), (3, 92750840), (4, 69563130), (5, 55650504), (6, 46375420), (7, 39750360), (8, 34781565), (10, 27825252), (12, 23187710), (13, 21404040), (14, 19875180), (15, 18550168), (20, 13912626), (21, 13250120), (24, 11593855), (26, 10702020), (28, 9937590), (30, 9275084), (35, 7950072), (39, 7134680), (40, 6956313), (42, 6625060), (52, 5351010), (56, 4968795), (60, 4637542), (65, 4280808), (70, 3975036), (78, 3567340), (83, 3352440), (84, 3312530), (91, 3057720), (104, 2675505), (105, 2650024), (120, 2318771), (130, 2140404), (140, 1987518), (156, 1783670), (166, 1676220), (168, 1656265), (182, 1528860), (195, 1426936), (210, 1325012), (249, 1117480), (260, 1070202), (273, 1019240), (280, 993759), (307, 906360), (312, 891835), (332, 838110), (364, 764430), (390, 713468), (415, 670488), (420, 662506), (455, 611544), (498, 558740), (520, 535101), (546, 509620), (581, 478920), (614, 453180), (664, 419055), (728, 382215), (780, 356734), (830, 335244), (840, 331253), (910, 305772), (921, 302120), (996, 279370), (1079, 257880), (1092, 254810), (1162, 239460), (1228, 226590), (1245, 223496), (1365, 203848), (1535, 181272), (1560, 178367), (1660, 167622), (1743, 159640), (1820, 152886), (1842, 151060), (1992, 139685), (2149, 129480), (2158, 128940), (2184, 127405), (2324, 119730), (2456, 113295), (2490, 111748), (2730, 101924), (2905, 95784), (3070, 90636), (3237, 85960), (3320, 83811), (3486, 79820), (3640, 76443), (3684, 75530), (3991, 69720), (4298, 64740), (4316, 64470), (4605, 60424), (4648, 59865), (4980, 55874), (5395, 51576), (5460, 50962), (5810, 47892), (6140, 45318), (6447, 43160), (6474, 42980), (6972, 39910), (7368, 37765), (7553, 36840), (7982, 34860), (8596, 32370), (8632, 32235), (8715, 31928), (9210, 30212), (9960, 27937), (10745, 25896), (10790, 25788), (10920, 25481), (11620, 23946), (11973, 23240), (12280, 22659), (12894, 21580), (12948, 21490), (13944, 19955), (15106, 18420), (15964, 17430), (16185, 17192)]