28385980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{202757}}^1$

素因数の和:202773

約数の個数: 24

約数和(自身を含む): 68126688

約数和(自身を除く): 39740708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 202757, 405514, 811028, 1013785, 1419299, 2027570, 2838598, 4055140, 5677196, 7096495, 14192990, 28385980]

約数ペア:

[(1, 28385980), (2, 14192990), (4, 7096495), (5, 5677196), (7, 4055140), (10, 2838598), (14, 2027570), (20, 1419299), (28, 1013785), (35, 811028), (70, 405514), (140, 202757)]