31721430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{499}}^1$

素因数の和:685

約数の個数: 64

約数和(自身を含む): 82656000

約数和(自身を除く): 50934570

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 163, 195, 326, 390, 489, 499, 815, 978, 998, 1497, 1630, 2119, 2445, 2495, 2994, 4238, 4890, 4990, 6357, 6487, 7485, 10595, 12714, 12974, 14970, 19461, 21190, 31785, 32435, 38922, 63570, 64870, 81337, 97305, 162674, 194610, 244011, 406685, 488022, 813370, 1057381, 1220055, 2114762, 2440110, 3172143, 5286905, 6344286, 10573810, 15860715, 31721430]

約数ペア:

[(1, 31721430), (2, 15860715), (3, 10573810), (5, 6344286), (6, 5286905), (10, 3172143), (13, 2440110), (15, 2114762), (26, 1220055), (30, 1057381), (39, 813370), (65, 488022), (78, 406685), (130, 244011), (163, 194610), (195, 162674), (326, 97305), (390, 81337), (489, 64870), (499, 63570), (815, 38922), (978, 32435), (998, 31785), (1497, 21190), (1630, 19461), (2119, 14970), (2445, 12974), (2495, 12714), (2994, 10595), (4238, 7485), (4890, 6487), (4990, 6357)]