20445110

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4001}}^1$

素因数の和:4088

約数の個数: 32

約数和(自身を含む): 42645312

約数和(自身を除く): 22200202

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 73, 146, 365, 511, 730, 1022, 2555, 4001, 5110, 8002, 20005, 28007, 40010, 56014, 140035, 280070, 292073, 584146, 1460365, 2044511, 2920730, 4089022, 10222555, 20445110]

約数ペア:

[(1, 20445110), (2, 10222555), (5, 4089022), (7, 2920730), (10, 2044511), (14, 1460365), (35, 584146), (70, 292073), (73, 280070), (146, 140035), (365, 56014), (511, 40010), (730, 28007), (1022, 20005), (2555, 8002), (4001, 5110)]