400492040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{770177}}^1$

素因数の和:770201

約数の個数: 32

約数和(自身を含む): 970424280

約数和(自身を除く): 569932240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 770177, 1540354, 3080708, 3850885, 6161416, 7701770, 10012301, 15403540, 20024602, 30807080, 40049204, 50061505, 80098408, 100123010, 200246020, 400492040]

約数ペア:

[(1, 400492040), (2, 200246020), (4, 100123010), (5, 80098408), (8, 50061505), (10, 40049204), (13, 30807080), (20, 20024602), (26, 15403540), (40, 10012301), (52, 7701770), (65, 6161416), (104, 3850885), (130, 3080708), (260, 1540354), (520, 770177)]