28290620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{74449}}^1$

素因数の和:74477

約数の個数: 24

約数和(自身を含む): 62538000

約数和(自身を除く): 34247380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 74449, 148898, 297796, 372245, 744490, 1414531, 1488980, 2829062, 5658124, 7072655, 14145310, 28290620]

約数ペア:

[(1, 28290620), (2, 14145310), (4, 7072655), (5, 5658124), (10, 2829062), (19, 1488980), (20, 1414531), (38, 744490), (76, 372245), (95, 297796), (190, 148898), (380, 74449)]