2018359960

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1\times {\mathrm{1871}}^1$

素因数の和:2212

約数の個数: 64

約数和(自身を含む): 4599504000

約数和(自身を除く): 2581144040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 181, 298, 362, 596, 724, 745, 905, 1192, 1448, 1490, 1810, 1871, 2980, 3620, 3742, 5960, 7240, 7484, 9355, 14968, 18710, 26969, 37420, 53938, 74840, 107876, 134845, 215752, 269690, 278779, 338651, 539380, 557558, 677302, 1078760, 1115116, 1354604, 1393895, 1693255, 2230232, 2709208, 2787790, 3386510, 5575580, 6773020, 11151160, 13546040, 50458999, 100917998, 201835996, 252294995, 403671992, 504589990, 1009179980, 2018359960]

約数ペア:

[(1, 2018359960), (2, 1009179980), (4, 504589990), (5, 403671992), (8, 252294995), (10, 201835996), (20, 100917998), (40, 50458999), (149, 13546040), (181, 11151160), (298, 6773020), (362, 5575580), (596, 3386510), (724, 2787790), (745, 2709208), (905, 2230232), (1192, 1693255), (1448, 1393895), (1490, 1354604), (1810, 1115116), (1871, 1078760), (2980, 677302), (3620, 557558), (3742, 539380), (5960, 338651), (7240, 278779), (7484, 269690), (9355, 215752), (14968, 134845), (18710, 107876), (26969, 74840), (37420, 53938)]