20100781640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{292673}}^1$

素因数の和:292802

約数の個数: 64

約数和(自身を含む): 48361451760

約数和(自身を除く): 28260670120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 101, 136, 170, 202, 340, 404, 505, 680, 808, 1010, 1717, 2020, 3434, 4040, 6868, 8585, 13736, 17170, 34340, 68680, 292673, 585346, 1170692, 1463365, 2341384, 2926730, 4975441, 5853460, 9950882, 11706920, 19901764, 24877205, 29559973, 39803528, 49754410, 59119946, 99508820, 118239892, 147799865, 199017640, 236479784, 295599730, 502519541, 591199460, 1005039082, 1182398920, 2010078164, 2512597705, 4020156328, 5025195410, 10050390820, 20100781640]

約数ペア:

[(1, 20100781640), (2, 10050390820), (4, 5025195410), (5, 4020156328), (8, 2512597705), (10, 2010078164), (17, 1182398920), (20, 1005039082), (34, 591199460), (40, 502519541), (68, 295599730), (85, 236479784), (101, 199017640), (136, 147799865), (170, 118239892), (202, 99508820), (340, 59119946), (404, 49754410), (505, 39803528), (680, 29559973), (808, 24877205), (1010, 19901764), (1717, 11706920), (2020, 9950882), (3434, 5853460), (4040, 4975441), (6868, 2926730), (8585, 2341384), (13736, 1463365), (17170, 1170692), (34340, 585346), (68680, 292673)]