18124720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13327}}^1$

素因数の和:13357

約数の個数: 40

約数和(自身を含む): 44622144

約数和(自身を除く): 26497424

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 13327, 26654, 53308, 66635, 106616, 133270, 213232, 226559, 266540, 453118, 533080, 906236, 1066160, 1132795, 1812472, 2265590, 3624944, 4531180, 9062360, 18124720]

約数ペア:

[(1, 18124720), (2, 9062360), (4, 4531180), (5, 3624944), (8, 2265590), (10, 1812472), (16, 1132795), (17, 1066160), (20, 906236), (34, 533080), (40, 453118), (68, 266540), (80, 226559), (85, 213232), (136, 133270), (170, 106616), (272, 66635), (340, 53308), (680, 26654), (1360, 13327)]