56405020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{10889}}^1$

素因数の和:10942

約数の個数: 48

約数和(自身を含む): 139043520

約数和(自身を除く): 82638500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 10889, 21778, 43556, 54445, 76223, 108890, 152446, 217780, 304892, 381115, 402893, 762230, 805786, 1524460, 1611572, 2014465, 2820251, 4028930, 5640502, 8057860, 11281004, 14101255, 28202510, 56405020]

約数ペア:

[(1, 56405020), (2, 28202510), (4, 14101255), (5, 11281004), (7, 8057860), (10, 5640502), (14, 4028930), (20, 2820251), (28, 2014465), (35, 1611572), (37, 1524460), (70, 805786), (74, 762230), (140, 402893), (148, 381115), (185, 304892), (259, 217780), (370, 152446), (518, 108890), (740, 76223), (1036, 54445), (1295, 43556), (2590, 21778), (5180, 10889)]