390520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{751}}^1$

素因数の和:775

約数の個数: 32

約数和(自身を含む): 947520

約数和(自身を除く): 557000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 751, 1502, 3004, 3755, 6008, 7510, 9763, 15020, 19526, 30040, 39052, 48815, 78104, 97630, 195260, 390520]

約数ペア:

[(1, 390520), (2, 195260), (4, 97630), (5, 78104), (8, 48815), (10, 39052), (13, 30040), (20, 19526), (26, 15020), (40, 9763), (52, 7510), (65, 6008), (104, 3755), (130, 3004), (260, 1502), (520, 751)]