161681560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{237767}}^1$

素因数の和:237795

約数の個数: 32

約数和(自身を含む): 385184160

約数和(自身を除く): 223502600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 237767, 475534, 951068, 1188835, 1902136, 2377670, 4042039, 4755340, 8084078, 9510680, 16168156, 20210195, 32336312, 40420390, 80840780, 161681560]

約数ペア:

[(1, 161681560), (2, 80840780), (4, 40420390), (5, 32336312), (8, 20210195), (10, 16168156), (17, 9510680), (20, 8084078), (34, 4755340), (40, 4042039), (68, 2377670), (85, 1902136), (136, 1188835), (170, 951068), (340, 475534), (680, 237767)]