2018553640

素因数分解:

$2^3\times 5^1\times {\mathrm{971}}^1\times {\mathrm{51971}}^1$

素因数の和:52953

約数の個数: 32

約数和(自身を含む): 4546510560

約数和(自身を除く): 2527956920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 971, 1942, 3884, 4855, 7768, 9710, 19420, 38840, 51971, 103942, 207884, 259855, 415768, 519710, 1039420, 2078840, 50463841, 100927682, 201855364, 252319205, 403710728, 504638410, 1009276820, 2018553640]

約数ペア:

[(1, 2018553640), (2, 1009276820), (4, 504638410), (5, 403710728), (8, 252319205), (10, 201855364), (20, 100927682), (40, 50463841), (971, 2078840), (1942, 1039420), (3884, 519710), (4855, 415768), (7768, 259855), (9710, 207884), (19420, 103942), (38840, 51971)]