65571560

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{569}}^1$

素因数の和:690

約数の個数: 64

約数和(自身を含む): 153489600

約数和(自身を除く): 87918040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 67, 86, 134, 172, 215, 268, 335, 344, 430, 536, 569, 670, 860, 1138, 1340, 1720, 2276, 2680, 2845, 2881, 4552, 5690, 5762, 11380, 11524, 14405, 22760, 23048, 24467, 28810, 38123, 48934, 57620, 76246, 97868, 115240, 122335, 152492, 190615, 195736, 244670, 304984, 381230, 489340, 762460, 978680, 1524920, 1639289, 3278578, 6557156, 8196445, 13114312, 16392890, 32785780, 65571560]

約数ペア:

[(1, 65571560), (2, 32785780), (4, 16392890), (5, 13114312), (8, 8196445), (10, 6557156), (20, 3278578), (40, 1639289), (43, 1524920), (67, 978680), (86, 762460), (134, 489340), (172, 381230), (215, 304984), (268, 244670), (335, 195736), (344, 190615), (430, 152492), (536, 122335), (569, 115240), (670, 97868), (860, 76246), (1138, 57620), (1340, 48934), (1720, 38123), (2276, 28810), (2680, 24467), (2845, 23048), (2881, 22760), (4552, 14405), (5690, 11524), (5762, 11380)]