28688380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{204917}}^1$

素因数の和:204933

約数の個数: 24

約数和(自身を含む): 68852448

約数和(自身を除く): 40164068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 204917, 409834, 819668, 1024585, 1434419, 2049170, 2868838, 4098340, 5737676, 7172095, 14344190, 28688380]

約数ペア:

[(1, 28688380), (2, 14344190), (4, 7172095), (5, 5737676), (7, 4098340), (10, 2868838), (14, 2049170), (20, 1434419), (28, 1024585), (35, 819668), (70, 409834), (140, 204917)]