39976240

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11621}}^1$

素因数の和:11677

約数の個数: 40

約数和(自身を含む): 95114448

約数和(自身を除く): 55138208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 11621, 23242, 46484, 58105, 92968, 116210, 185936, 232420, 464840, 499703, 929680, 999406, 1998812, 2498515, 3997624, 4997030, 7995248, 9994060, 19988120, 39976240]

約数ペア:

[(1, 39976240), (2, 19988120), (4, 9994060), (5, 7995248), (8, 4997030), (10, 3997624), (16, 2498515), (20, 1998812), (40, 999406), (43, 929680), (80, 499703), (86, 464840), (172, 232420), (215, 185936), (344, 116210), (430, 92968), (688, 58105), (860, 46484), (1720, 23242), (3440, 11621)]