31495780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{691}}^1$

素因数の和:796

約数の個数: 48

約数和(自身を含む): 69056064

約数和(自身を除く): 37560284

約数列:

[1, 2, 4, 5, 10, 20, 43, 53, 86, 106, 172, 212, 215, 265, 430, 530, 691, 860, 1060, 1382, 2279, 2764, 3455, 4558, 6910, 9116, 11395, 13820, 22790, 29713, 36623, 45580, 59426, 73246, 118852, 146492, 148565, 183115, 297130, 366230, 594260, 732460, 1574789, 3149578, 6299156, 7873945, 15747890, 31495780]

約数ペア:

[(1, 31495780), (2, 15747890), (4, 7873945), (5, 6299156), (10, 3149578), (20, 1574789), (43, 732460), (53, 594260), (86, 366230), (106, 297130), (172, 183115), (212, 148565), (215, 146492), (265, 118852), (430, 73246), (530, 59426), (691, 45580), (860, 36623), (1060, 29713), (1382, 22790), (2279, 13820), (2764, 11395), (3455, 9116), (4558, 6910)]