261567700

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:673

約数の個数: 72

約数和(自身を含む): 587087424

約数和(自身を除く): 325519724

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 131, 164, 205, 262, 410, 487, 524, 655, 820, 974, 1025, 1310, 1948, 2050, 2435, 2620, 3275, 4100, 4870, 5371, 6550, 9740, 10742, 12175, 13100, 19967, 21484, 24350, 26855, 39934, 48700, 53710, 63797, 79868, 99835, 107420, 127594, 134275, 199670, 255188, 268550, 318985, 399340, 499175, 537100, 637970, 998350, 1275940, 1594925, 1996700, 2615677, 3189850, 5231354, 6379700, 10462708, 13078385, 26156770, 52313540, 65391925, 130783850, 261567700]

約数ペア:

[(1, 261567700), (2, 130783850), (4, 65391925), (5, 52313540), (10, 26156770), (20, 13078385), (25, 10462708), (41, 6379700), (50, 5231354), (82, 3189850), (100, 2615677), (131, 1996700), (164, 1594925), (205, 1275940), (262, 998350), (410, 637970), (487, 537100), (524, 499175), (655, 399340), (820, 318985), (974, 268550), (1025, 255188), (1310, 199670), (1948, 134275), (2050, 127594), (2435, 107420), (2620, 99835), (3275, 79868), (4100, 63797), (4870, 53710), (5371, 48700), (6550, 39934), (9740, 26855), (10742, 24350), (12175, 21484), (13100, 19967)]