25687100

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{4211}}^1$

素因数の和:4286

約数の個数: 36

約数和(自身を含む): 56668248

約数和(自身を除く): 30981148

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 3050, 4211, 6100, 8422, 16844, 21055, 42110, 84220, 105275, 210550, 256871, 421100, 513742, 1027484, 1284355, 2568710, 5137420, 6421775, 12843550, 25687100]

約数ペア:

[(1, 25687100), (2, 12843550), (4, 6421775), (5, 5137420), (10, 2568710), (20, 1284355), (25, 1027484), (50, 513742), (61, 421100), (100, 256871), (122, 210550), (244, 105275), (305, 84220), (610, 42110), (1220, 21055), (1525, 16844), (3050, 8422), (4211, 6100)]