28749940

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{8819}}^1$

素因数の和:8991

約数の個数: 24

約数和(自身を含む): 60752160

約数和(自身を除く): 32002220

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 8819, 17638, 35276, 44095, 88190, 176380, 1437497, 2874994, 5749988, 7187485, 14374970, 28749940]

約数ペア:

[(1, 28749940), (2, 14374970), (4, 7187485), (5, 5749988), (10, 2874994), (20, 1437497), (163, 176380), (326, 88190), (652, 44095), (815, 35276), (1630, 17638), (3260, 8819)]