64188890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1\times {\mathrm{569}}^1$

素因数の和:994

約数の個数: 32

約数和(自身を含む): 120042000

約数和(自身を除く): 55853110

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 389, 569, 778, 1138, 1945, 2845, 3890, 5690, 11281, 16501, 22562, 33002, 56405, 82505, 112810, 165010, 221341, 442682, 1106705, 2213410, 6418889, 12837778, 32094445, 64188890]

約数ペア:

[(1, 64188890), (2, 32094445), (5, 12837778), (10, 6418889), (29, 2213410), (58, 1106705), (145, 442682), (290, 221341), (389, 165010), (569, 112810), (778, 82505), (1138, 56405), (1945, 33002), (2845, 22562), (3890, 16501), (5690, 11281)]