18279760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13441}}^1$

素因数の和:13471

約数の個数: 40

約数和(自身を含む): 45003816

約数和(自身を除く): 26724056

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 13441, 26882, 53764, 67205, 107528, 134410, 215056, 228497, 268820, 456994, 537640, 913988, 1075280, 1142485, 1827976, 2284970, 3655952, 4569940, 9139880, 18279760]

約数ペア:

[(1, 18279760), (2, 9139880), (4, 4569940), (5, 3655952), (8, 2284970), (10, 1827976), (16, 1142485), (17, 1075280), (20, 913988), (34, 537640), (40, 456994), (68, 268820), (80, 228497), (85, 215056), (136, 134410), (170, 107528), (272, 67205), (340, 53764), (680, 26882), (1360, 13441)]