20523080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{30181}}^1$

素因数の和:30209

約数の個数: 32

約数和(自身を含む): 48894840

約数和(自身を除く): 28371760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 30181, 60362, 120724, 150905, 241448, 301810, 513077, 603620, 1026154, 1207240, 2052308, 2565385, 4104616, 5130770, 10261540, 20523080]

約数ペア:

[(1, 20523080), (2, 10261540), (4, 5130770), (5, 4104616), (8, 2565385), (10, 2052308), (17, 1207240), (20, 1026154), (34, 603620), (40, 513077), (68, 301810), (85, 241448), (136, 150905), (170, 120724), (340, 60362), (680, 30181)]