20565528040

素因数分解:

$2^3\times 5^1\times {\mathrm{22543}}^1\times {\mathrm{22807}}^1$

素因数の和:45361

約数の個数: 32

約数和(自身を含む): 46276519680

約数和(自身を除く): 25710991640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 22543, 22807, 45086, 45614, 90172, 91228, 112715, 114035, 180344, 182456, 225430, 228070, 450860, 456140, 901720, 912280, 514138201, 1028276402, 2056552804, 2570691005, 4113105608, 5141382010, 10282764020, 20565528040]

約数ペア:

[(1, 20565528040), (2, 10282764020), (4, 5141382010), (5, 4113105608), (8, 2570691005), (10, 2056552804), (20, 1028276402), (40, 514138201), (22543, 912280), (22807, 901720), (45086, 456140), (45614, 450860), (90172, 228070), (91228, 225430), (112715, 182456), (114035, 180344)]