1782780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 5115264

約数和(自身を除く): 3332484

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 691, 860, 1290, 1382, 2073, 2580, 2764, 3455, 4146, 6910, 8292, 10365, 13820, 20730, 29713, 41460, 59426, 89139, 118852, 148565, 178278, 297130, 356556, 445695, 594260, 891390, 1782780]

約数ペア:

[(1, 1782780), (2, 891390), (3, 594260), (4, 445695), (5, 356556), (6, 297130), (10, 178278), (12, 148565), (15, 118852), (20, 89139), (30, 59426), (43, 41460), (60, 29713), (86, 20730), (129, 13820), (172, 10365), (215, 8292), (258, 6910), (430, 4146), (516, 3455), (645, 2764), (691, 2580), (860, 2073), (1290, 1382)]