138720100

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{22741}}^1$

素因数の和:22816

約数の個数: 36

約数和(自身を含む): 305970868

約数和(自身を除く): 167250768

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 3050, 6100, 22741, 45482, 90964, 113705, 227410, 454820, 568525, 1137050, 1387201, 2274100, 2774402, 5548804, 6936005, 13872010, 27744020, 34680025, 69360050, 138720100]

約数ペア:

[(1, 138720100), (2, 69360050), (4, 34680025), (5, 27744020), (10, 13872010), (20, 6936005), (25, 5548804), (50, 2774402), (61, 2274100), (100, 1387201), (122, 1137050), (244, 568525), (305, 454820), (610, 227410), (1220, 113705), (1525, 90964), (3050, 45482), (6100, 22741)]