395667080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{461}}^1\times {\mathrm{499}}^1$

素因数の和:1014

約数の個数: 64

約数和(自身を含む): 914760000

約数和(自身を除く): 519092920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 461, 499, 860, 922, 998, 1720, 1844, 1996, 2305, 2495, 3688, 3992, 4610, 4990, 9220, 9980, 18440, 19823, 19960, 21457, 39646, 42914, 79292, 85828, 99115, 107285, 158584, 171656, 198230, 214570, 230039, 396460, 429140, 460078, 792920, 858280, 920156, 1150195, 1840312, 2300390, 4600780, 9201560, 9891677, 19783354, 39566708, 49458385, 79133416, 98916770, 197833540, 395667080]

約数ペア:

[(1, 395667080), (2, 197833540), (4, 98916770), (5, 79133416), (8, 49458385), (10, 39566708), (20, 19783354), (40, 9891677), (43, 9201560), (86, 4600780), (172, 2300390), (215, 1840312), (344, 1150195), (430, 920156), (461, 858280), (499, 792920), (860, 460078), (922, 429140), (998, 396460), (1720, 230039), (1844, 214570), (1996, 198230), (2305, 171656), (2495, 158584), (3688, 107285), (3992, 99115), (4610, 85828), (4990, 79292), (9220, 42914), (9980, 39646), (18440, 21457), (19823, 19960)]