280358420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{452191}}^1$

素因数の和:452231

約数の個数: 24

約数和(自身を含む): 607746048

約数和(自身を除く): 327387628

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 452191, 904382, 1808764, 2260955, 4521910, 9043820, 14017921, 28035842, 56071684, 70089605, 140179210, 280358420]

約数ペア:

[(1, 280358420), (2, 140179210), (4, 70089605), (5, 56071684), (10, 28035842), (20, 14017921), (31, 9043820), (62, 4521910), (124, 2260955), (155, 1808764), (310, 904382), (620, 452191)]