315099460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1211921}}^1$

素因数の和:1211943

約数の個数: 24

約数和(自身を含む): 712610136

約数和(自身を除く): 397510676

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1211921, 2423842, 4847684, 6059605, 12119210, 15754973, 24238420, 31509946, 63019892, 78774865, 157549730, 315099460]

約数ペア:

[(1, 315099460), (2, 157549730), (4, 78774865), (5, 63019892), (10, 31509946), (13, 24238420), (20, 15754973), (26, 12119210), (52, 6059605), (65, 4847684), (130, 2423842), (260, 1211921)]