20292220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4591}}^1$

素因数の和:4630

約数の個数: 48

約数和(自身を含む): 48601728

約数和(自身を除く): 28309508

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 4591, 9182, 18364, 22955, 45910, 59683, 78047, 91820, 119366, 156094, 238732, 298415, 312188, 390235, 596830, 780470, 1014611, 1193660, 1560940, 2029222, 4058444, 5073055, 10146110, 20292220]

約数ペア:

[(1, 20292220), (2, 10146110), (4, 5073055), (5, 4058444), (10, 2029222), (13, 1560940), (17, 1193660), (20, 1014611), (26, 780470), (34, 596830), (52, 390235), (65, 312188), (68, 298415), (85, 238732), (130, 156094), (170, 119366), (221, 91820), (260, 78047), (340, 59683), (442, 45910), (884, 22955), (1105, 18364), (2210, 9182), (4420, 4591)]