520235440

素因数分解:

$2^4\times 5^1\times {\mathrm{6502943}}^1$

素因数の和:6502956

約数の個数: 20

約数和(自身を含む): 1209547584

約数和(自身を除く): 689312144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6502943, 13005886, 26011772, 32514715, 52023544, 65029430, 104047088, 130058860, 260117720, 520235440]

約数ペア:

[(1, 520235440), (2, 260117720), (4, 130058860), (5, 104047088), (8, 65029430), (10, 52023544), (16, 32514715), (20, 26011772), (40, 13005886), (80, 6502943)]