780091220

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{163199}}^1$

素因数の和:163447

約数の個数: 24

約数和(自身を含む): 1645056000

約数和(自身を除く): 864964780

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780, 163199, 326398, 652796, 815995, 1631990, 3263980, 39004561, 78009122, 156018244, 195022805, 390045610, 780091220]

約数ペア:

[(1, 780091220), (2, 390045610), (4, 195022805), (5, 156018244), (10, 78009122), (20, 39004561), (239, 3263980), (478, 1631990), (956, 815995), (1195, 652796), (2390, 326398), (4780, 163199)]