19971780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7741}}^1$

素因数の和:7796

約数の個数: 48

約数和(自身を含む): 57228864

約数和(自身を除く): 37257084

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 7741, 15482, 23223, 30964, 38705, 46446, 77410, 92892, 116115, 154820, 232230, 332863, 464460, 665726, 998589, 1331452, 1664315, 1997178, 3328630, 3994356, 4992945, 6657260, 9985890, 19971780]

約数ペア:

[(1, 19971780), (2, 9985890), (3, 6657260), (4, 4992945), (5, 3994356), (6, 3328630), (10, 1997178), (12, 1664315), (15, 1331452), (20, 998589), (30, 665726), (43, 464460), (60, 332863), (86, 232230), (129, 154820), (172, 116115), (215, 92892), (258, 77410), (430, 46446), (516, 38705), (645, 30964), (860, 23223), (1290, 15482), (2580, 7741)]