21896080

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{4639}}^1$

素因数の和:4711

約数の個数: 40

約数和(自身を含む): 51782400

約数和(自身を除く): 29886320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4639, 4720, 9278, 18556, 23195, 37112, 46390, 74224, 92780, 185560, 273701, 371120, 547402, 1094804, 1368505, 2189608, 2737010, 4379216, 5474020, 10948040, 21896080]

約数ペア:

[(1, 21896080), (2, 10948040), (4, 5474020), (5, 4379216), (8, 2737010), (10, 2189608), (16, 1368505), (20, 1094804), (40, 547402), (59, 371120), (80, 273701), (118, 185560), (236, 92780), (295, 74224), (472, 46390), (590, 37112), (944, 23195), (1180, 18556), (2360, 9278), (4639, 4720)]