64961420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{11239}}^1$

素因数の和:11282

約数の個数: 36

約数和(自身を含む): 144928560

約数和(自身を除く): 79967140

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 11239, 22478, 44956, 56195, 112390, 191063, 224780, 382126, 764252, 955315, 1910630, 3248071, 3821260, 6496142, 12992284, 16240355, 32480710, 64961420]

約数ペア:

[(1, 64961420), (2, 32480710), (4, 16240355), (5, 12992284), (10, 6496142), (17, 3821260), (20, 3248071), (34, 1910630), (68, 955315), (85, 764252), (170, 382126), (289, 224780), (340, 191063), (578, 112390), (1156, 56195), (1445, 44956), (2890, 22478), (5780, 11239)]