78457210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:439

約数の個数: 64

約数和(自身を含む): 162860544

約数和(自身を除く): 84403334

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 131, 170, 221, 262, 271, 442, 542, 655, 1105, 1310, 1355, 1703, 2210, 2227, 2710, 3406, 3523, 4454, 4607, 7046, 8515, 9214, 11135, 17030, 17615, 22270, 23035, 28951, 35230, 35501, 46070, 57902, 59891, 71002, 119782, 144755, 177505, 289510, 299455, 355010, 461513, 598910, 603517, 923026, 1207034, 2307565, 3017585, 4615130, 6035170, 7845721, 15691442, 39228605, 78457210]

約数ペア:

[(1, 78457210), (2, 39228605), (5, 15691442), (10, 7845721), (13, 6035170), (17, 4615130), (26, 3017585), (34, 2307565), (65, 1207034), (85, 923026), (130, 603517), (131, 598910), (170, 461513), (221, 355010), (262, 299455), (271, 289510), (442, 177505), (542, 144755), (655, 119782), (1105, 71002), (1310, 59891), (1355, 57902), (1703, 46070), (2210, 35501), (2227, 35230), (2710, 28951), (3406, 23035), (3523, 22270), (4454, 17615), (4607, 17030), (7046, 11135), (8515, 9214)]