858877580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{21569}}^1$

素因数の和:21770

約数の個数: 48

約数和(自身を含む): 1978572960

約数和(自身を除く): 1119695380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 724, 905, 1810, 1991, 3620, 3982, 7964, 9955, 19910, 21569, 39820, 43138, 86276, 107845, 215690, 237259, 431380, 474518, 949036, 1186295, 2372590, 3903989, 4745180, 7807978, 15615956, 19519945, 39039890, 42943879, 78079780, 85887758, 171775516, 214719395, 429438790, 858877580]

約数ペア:

[(1, 858877580), (2, 429438790), (4, 214719395), (5, 171775516), (10, 85887758), (11, 78079780), (20, 42943879), (22, 39039890), (44, 19519945), (55, 15615956), (110, 7807978), (181, 4745180), (220, 3903989), (362, 2372590), (724, 1186295), (905, 949036), (1810, 474518), (1991, 431380), (3620, 237259), (3982, 215690), (7964, 107845), (9955, 86276), (19910, 43138), (21569, 39820)]