420821570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{487}}^1$

素因数の和:564

約数の個数: 96

約数和(自身を含む): 906087168

約数和(自身を除く): 485265598

約数列:

[1, 2, 5, 10, 13, 17, 23, 26, 34, 46, 65, 85, 115, 130, 170, 221, 230, 289, 299, 391, 442, 487, 578, 598, 782, 974, 1105, 1445, 1495, 1955, 2210, 2435, 2890, 2990, 3757, 3910, 4870, 5083, 6331, 6647, 7514, 8279, 10166, 11201, 12662, 13294, 16558, 18785, 22402, 25415, 31655, 33235, 37570, 41395, 50830, 56005, 63310, 66470, 82790, 86411, 107627, 112010, 140743, 145613, 172822, 190417, 215254, 281486, 291226, 380834, 432055, 538135, 703715, 728065, 864110, 952085, 1076270, 1407430, 1456130, 1829659, 1904170, 2475421, 3237089, 3659318, 4950842, 6474178, 9148295, 12377105, 16185445, 18296590, 24754210, 32370890, 42082157, 84164314, 210410785, 420821570]

約数ペア:

[(1, 420821570), (2, 210410785), (5, 84164314), (10, 42082157), (13, 32370890), (17, 24754210), (23, 18296590), (26, 16185445), (34, 12377105), (46, 9148295), (65, 6474178), (85, 4950842), (115, 3659318), (130, 3237089), (170, 2475421), (221, 1904170), (230, 1829659), (289, 1456130), (299, 1407430), (391, 1076270), (442, 952085), (487, 864110), (578, 728065), (598, 703715), (782, 538135), (974, 432055), (1105, 380834), (1445, 291226), (1495, 281486), (1955, 215254), (2210, 190417), (2435, 172822), (2890, 145613), (2990, 140743), (3757, 112010), (3910, 107627), (4870, 86411), (5083, 82790), (6331, 66470), (6647, 63310), (7514, 56005), (8279, 50830), (10166, 41395), (11201, 37570), (12662, 33235), (13294, 31655), (16558, 25415), (18785, 22402)]