18399640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{65713}}^1$

素因数の和:65731

約数の個数: 32

約数和(自身を含む): 47314080

約数和(自身を除く): 28914440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 65713, 131426, 262852, 328565, 459991, 525704, 657130, 919982, 1314260, 1839964, 2299955, 2628520, 3679928, 4599910, 9199820, 18399640]

約数ペア:

[(1, 18399640), (2, 9199820), (4, 4599910), (5, 3679928), (7, 2628520), (8, 2299955), (10, 1839964), (14, 1314260), (20, 919982), (28, 657130), (35, 525704), (40, 459991), (56, 328565), (70, 262852), (140, 131426), (280, 65713)]