71220140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{209471}}^1$

素因数の和:209497

約数の個数: 24

約数和(自身を含む): 158360832

約数和(自身を除く): 87140692

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 209471, 418942, 837884, 1047355, 2094710, 3561007, 4189420, 7122014, 14244028, 17805035, 35610070, 71220140]

約数ペア:

[(1, 71220140), (2, 35610070), (4, 17805035), (5, 14244028), (10, 7122014), (17, 4189420), (20, 3561007), (34, 2094710), (68, 1047355), (85, 837884), (170, 418942), (340, 209471)]