2018015900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{3541}}^1$

素因数の和:3735

約数の個数: 72

約数和(自身を含む): 4519450320

約数和(自身を除く): 2501434420

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 139, 164, 205, 278, 410, 556, 695, 820, 1025, 1390, 2050, 2780, 3475, 3541, 4100, 5699, 6950, 7082, 11398, 13900, 14164, 17705, 22796, 28495, 35410, 56990, 70820, 88525, 113980, 142475, 145181, 177050, 284950, 290362, 354100, 492199, 569900, 580724, 725905, 984398, 1451810, 1968796, 2460995, 2903620, 3629525, 4921990, 7259050, 9843980, 12304975, 14518100, 20180159, 24609950, 40360318, 49219900, 80720636, 100900795, 201801590, 403603180, 504503975, 1009007950, 2018015900]

約数ペア:

[(1, 2018015900), (2, 1009007950), (4, 504503975), (5, 403603180), (10, 201801590), (20, 100900795), (25, 80720636), (41, 49219900), (50, 40360318), (82, 24609950), (100, 20180159), (139, 14518100), (164, 12304975), (205, 9843980), (278, 7259050), (410, 4921990), (556, 3629525), (695, 2903620), (820, 2460995), (1025, 1968796), (1390, 1451810), (2050, 984398), (2780, 725905), (3475, 580724), (3541, 569900), (4100, 492199), (5699, 354100), (6950, 290362), (7082, 284950), (11398, 177050), (13900, 145181), (14164, 142475), (17705, 113980), (22796, 88525), (28495, 70820), (35410, 56990)]