64408580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{189437}}^1$

素因数の和:189463

約数の個数: 24

約数和(自身を含む): 143215128

約数和(自身を除く): 78806548

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 189437, 378874, 757748, 947185, 1894370, 3220429, 3788740, 6440858, 12881716, 16102145, 32204290, 64408580]

約数ペア:

[(1, 64408580), (2, 32204290), (4, 16102145), (5, 12881716), (10, 6440858), (17, 3788740), (20, 3220429), (34, 1894370), (68, 947185), (85, 757748), (170, 378874), (340, 189437)]