20017558720

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1229}}^1\times {\mathrm{2213}}^1$

素因数の和:3482

約数の個数: 112

約数和(自身を含む): 49802247360

約数和(自身を除く): 29784688640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 736, 920, 1229, 1472, 1840, 2213, 2458, 3680, 4426, 4916, 6145, 7360, 8852, 9832, 11065, 12290, 17704, 19664, 22130, 24580, 28267, 35408, 39328, 44260, 49160, 50899, 56534, 70816, 78656, 88520, 98320, 101798, 113068, 141335, 141632, 177040, 196640, 203596, 226136, 254495, 282670, 354080, 393280, 407192, 452272, 508990, 565340, 708160, 814384, 904544, 1017980, 1130680, 1628768, 1809088, 2035960, 2261360, 2719777, 3257536, 4071920, 4522720, 5439554, 8143840, 9045440, 10879108, 13598885, 16287680, 21758216, 27197770, 43516432, 54395540, 62554871, 87032864, 108791080, 125109742, 174065728, 217582160, 250219484, 312774355, 435164320, 500438968, 625548710, 870328640, 1000877936, 1251097420, 2001755872, 2502194840, 4003511744, 5004389680, 10008779360, 20017558720]

約数ペア:

[(1, 20017558720), (2, 10008779360), (4, 5004389680), (5, 4003511744), (8, 2502194840), (10, 2001755872), (16, 1251097420), (20, 1000877936), (23, 870328640), (32, 625548710), (40, 500438968), (46, 435164320), (64, 312774355), (80, 250219484), (92, 217582160), (115, 174065728), (160, 125109742), (184, 108791080), (230, 87032864), (320, 62554871), (368, 54395540), (460, 43516432), (736, 27197770), (920, 21758216), (1229, 16287680), (1472, 13598885), (1840, 10879108), (2213, 9045440), (2458, 8143840), (3680, 5439554), (4426, 4522720), (4916, 4071920), (6145, 3257536), (7360, 2719777), (8852, 2261360), (9832, 2035960), (11065, 1809088), (12290, 1628768), (17704, 1130680), (19664, 1017980), (22130, 904544), (24580, 814384), (28267, 708160), (35408, 565340), (39328, 508990), (44260, 452272), (49160, 407192), (50899, 393280), (56534, 354080), (70816, 282670), (78656, 254495), (88520, 226136), (98320, 203596), (101798, 196640), (113068, 177040), (141335, 141632)]