28440380

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{11197}}^1$

素因数の和:11333

約数の個数: 24

約数和(自身を含む): 60200448

約数和(自身を除く): 31760068

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 11197, 22394, 44788, 55985, 111970, 223940, 1422019, 2844038, 5688076, 7110095, 14220190, 28440380]

約数ペア:

[(1, 28440380), (2, 14220190), (4, 7110095), (5, 5688076), (10, 2844038), (20, 1422019), (127, 223940), (254, 111970), (508, 55985), (635, 44788), (1270, 22394), (2540, 11197)]