218939080

素因数分解:

$2^3\times 5^1\times {\mathrm{613}}^1\times {\mathrm{8929}}^1$

素因数の和:9553

約数の個数: 32

約数和(自身を含む): 493471800

約数和(自身を除く): 274532720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 613, 1226, 2452, 3065, 4904, 6130, 8929, 12260, 17858, 24520, 35716, 44645, 71432, 89290, 178580, 357160, 5473477, 10946954, 21893908, 27367385, 43787816, 54734770, 109469540, 218939080]

約数ペア:

[(1, 218939080), (2, 109469540), (4, 54734770), (5, 43787816), (8, 27367385), (10, 21893908), (20, 10946954), (40, 5473477), (613, 357160), (1226, 178580), (2452, 89290), (3065, 71432), (4904, 44645), (6130, 35716), (8929, 24520), (12260, 17858)]