506480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1$

素因数の和:513

約数の個数: 40

約数和(自身を含む): 1270752

約数和(自身を除く): 764272

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 487, 520, 974, 1040, 1948, 2435, 3896, 4870, 6331, 7792, 9740, 12662, 19480, 25324, 31655, 38960, 50648, 63310, 101296, 126620, 253240, 506480]

約数ペア:

[(1, 506480), (2, 253240), (4, 126620), (5, 101296), (8, 63310), (10, 50648), (13, 38960), (16, 31655), (20, 25324), (26, 19480), (40, 12662), (52, 9740), (65, 7792), (80, 6331), (104, 4870), (130, 3896), (208, 2435), (260, 1948), (487, 1040), (520, 974)]