11519120

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1321}}^1$

素因数の和:1443

約数の個数: 40

約数和(自身を含む): 27048120

約数和(自身を除く): 15529000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1321, 1744, 2180, 2642, 4360, 5284, 6605, 8720, 10568, 13210, 21136, 26420, 52840, 105680, 143989, 287978, 575956, 719945, 1151912, 1439890, 2303824, 2879780, 5759560, 11519120]

約数ペア:

[(1, 11519120), (2, 5759560), (4, 2879780), (5, 2303824), (8, 1439890), (10, 1151912), (16, 719945), (20, 575956), (40, 287978), (80, 143989), (109, 105680), (218, 52840), (436, 26420), (545, 21136), (872, 13210), (1090, 10568), (1321, 8720), (1744, 6605), (2180, 5284), (2642, 4360)]