318639490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{29531}}^1$

素因数の和:29634

約数の個数: 32

約数和(自身を含む): 625133376

約数和(自身を除く): 306493886

約数列:

[1, 2, 5, 10, 13, 26, 65, 83, 130, 166, 415, 830, 1079, 2158, 5395, 10790, 29531, 59062, 147655, 295310, 383903, 767806, 1919515, 2451073, 3839030, 4902146, 12255365, 24510730, 31863949, 63727898, 159319745, 318639490]

約数ペア:

[(1, 318639490), (2, 159319745), (5, 63727898), (10, 31863949), (13, 24510730), (26, 12255365), (65, 4902146), (83, 3839030), (130, 2451073), (166, 1919515), (415, 767806), (830, 383903), (1079, 295310), (2158, 147655), (5395, 59062), (10790, 29531)]