493450

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 24

約数和(自身を含む): 937440

約数和(自身を除く): 443990

約数列:

[1, 2, 5, 10, 25, 50, 71, 139, 142, 278, 355, 695, 710, 1390, 1775, 3475, 3550, 6950, 9869, 19738, 49345, 98690, 246725, 493450]

約数ペア:

[(1, 493450), (2, 246725), (5, 98690), (10, 49345), (25, 19738), (50, 9869), (71, 6950), (139, 3550), (142, 3475), (278, 1775), (355, 1390), (695, 710)]