140090420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{757}}^1$

素因数の和:1272

約数の個数: 48

約数和(自身を含む): 310719360

約数和(自身を除く): 170628940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 487, 757, 974, 1514, 1948, 2435, 3028, 3785, 4870, 7570, 9253, 9740, 14383, 15140, 18506, 28766, 37012, 46265, 57532, 71915, 92530, 143830, 185060, 287660, 368659, 737318, 1474636, 1843295, 3686590, 7004521, 7373180, 14009042, 28018084, 35022605, 70045210, 140090420]

約数ペア:

[(1, 140090420), (2, 70045210), (4, 35022605), (5, 28018084), (10, 14009042), (19, 7373180), (20, 7004521), (38, 3686590), (76, 1843295), (95, 1474636), (190, 737318), (380, 368659), (487, 287660), (757, 185060), (974, 143830), (1514, 92530), (1948, 71915), (2435, 57532), (3028, 46265), (3785, 37012), (4870, 28766), (7570, 18506), (9253, 15140), (9740, 14383)]