20244080

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{4289}}^1$

素因数の和:4361

約数の個数: 40

約数和(自身を含む): 47876400

約数和(自身を除く): 27632320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4289, 4720, 8578, 17156, 21445, 34312, 42890, 68624, 85780, 171560, 253051, 343120, 506102, 1012204, 1265255, 2024408, 2530510, 4048816, 5061020, 10122040, 20244080]

約数ペア:

[(1, 20244080), (2, 10122040), (4, 5061020), (5, 4048816), (8, 2530510), (10, 2024408), (16, 1265255), (20, 1012204), (40, 506102), (59, 343120), (80, 253051), (118, 171560), (236, 85780), (295, 68624), (472, 42890), (590, 34312), (944, 21445), (1180, 17156), (2360, 8578), (4289, 4720)]