28629140

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{19609}}^1$

素因数の和:19691

約数の個数: 24

約数和(自身を含む): 60947880

約数和(自身を除く): 32318740

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 19609, 39218, 78436, 98045, 196090, 392180, 1431457, 2862914, 5725828, 7157285, 14314570, 28629140]

約数ペア:

[(1, 28629140), (2, 14314570), (4, 7157285), (5, 5725828), (10, 2862914), (20, 1431457), (73, 392180), (146, 196090), (292, 98045), (365, 78436), (730, 39218), (1460, 19609)]