781040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{751}}^1$

素因数の和:777

約数の個数: 40

約数和(自身を含む): 1958208

約数和(自身を除く): 1177168

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 751, 1040, 1502, 3004, 3755, 6008, 7510, 9763, 12016, 15020, 19526, 30040, 39052, 48815, 60080, 78104, 97630, 156208, 195260, 390520, 781040]

約数ペア:

[(1, 781040), (2, 390520), (4, 195260), (5, 156208), (8, 97630), (10, 78104), (13, 60080), (16, 48815), (20, 39052), (26, 30040), (40, 19526), (52, 15020), (65, 12016), (80, 9763), (104, 7510), (130, 6008), (208, 3755), (260, 3004), (520, 1502), (751, 1040)]