181615360

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:274

約数の個数: 144

約数和(自身を含む): 470937600

約数和(自身を除く): 289322240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 64, 80, 92, 115, 124, 128, 155, 160, 184, 199, 230, 248, 256, 310, 320, 368, 398, 460, 496, 620, 640, 713, 736, 796, 920, 992, 995, 1240, 1280, 1426, 1472, 1592, 1840, 1984, 1990, 2480, 2852, 2944, 3184, 3565, 3680, 3968, 3980, 4577, 4960, 5704, 5888, 6169, 6368, 7130, 7360, 7936, 7960, 9154, 9920, 11408, 12338, 12736, 14260, 14720, 15920, 18308, 19840, 22816, 22885, 24676, 25472, 28520, 29440, 30845, 31840, 36616, 39680, 45632, 45770, 49352, 50944, 57040, 61690, 63680, 73232, 91264, 91540, 98704, 114080, 123380, 127360, 141887, 146464, 182528, 183080, 197408, 228160, 246760, 254720, 283774, 292928, 366160, 394816, 456320, 493520, 567548, 585856, 709435, 732320, 789632, 912640, 987040, 1135096, 1171712, 1418870, 1464640, 1579264, 1974080, 2270192, 2837740, 2929280, 3948160, 4540384, 5675480, 5858560, 7896320, 9080768, 11350960, 18161536, 22701920, 36323072, 45403840, 90807680, 181615360]

約数ペア:

[(1, 181615360), (2, 90807680), (4, 45403840), (5, 36323072), (8, 22701920), (10, 18161536), (16, 11350960), (20, 9080768), (23, 7896320), (31, 5858560), (32, 5675480), (40, 4540384), (46, 3948160), (62, 2929280), (64, 2837740), (80, 2270192), (92, 1974080), (115, 1579264), (124, 1464640), (128, 1418870), (155, 1171712), (160, 1135096), (184, 987040), (199, 912640), (230, 789632), (248, 732320), (256, 709435), (310, 585856), (320, 567548), (368, 493520), (398, 456320), (460, 394816), (496, 366160), (620, 292928), (640, 283774), (713, 254720), (736, 246760), (796, 228160), (920, 197408), (992, 183080), (995, 182528), (1240, 146464), (1280, 141887), (1426, 127360), (1472, 123380), (1592, 114080), (1840, 98704), (1984, 91540), (1990, 91264), (2480, 73232), (2852, 63680), (2944, 61690), (3184, 57040), (3565, 50944), (3680, 49352), (3968, 45770), (3980, 45632), (4577, 39680), (4960, 36616), (5704, 31840), (5888, 30845), (6169, 29440), (6368, 28520), (7130, 25472), (7360, 24676), (7936, 22885), (7960, 22816), (9154, 19840), (9920, 18308), (11408, 15920), (12338, 14720), (12736, 14260)]