22874780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 49533120

約数和(自身を除く): 26658340

約数列:

[1, 2, 4, 5, 10, 20, 71, 89, 142, 178, 181, 284, 355, 356, 362, 445, 710, 724, 890, 905, 1420, 1780, 1810, 3620, 6319, 12638, 12851, 16109, 25276, 25702, 31595, 32218, 51404, 63190, 64255, 64436, 80545, 126380, 128510, 161090, 257020, 322180, 1143739, 2287478, 4574956, 5718695, 11437390, 22874780]

約数ペア:

[(1, 22874780), (2, 11437390), (4, 5718695), (5, 4574956), (10, 2287478), (20, 1143739), (71, 322180), (89, 257020), (142, 161090), (178, 128510), (181, 126380), (284, 80545), (355, 64436), (356, 64255), (362, 63190), (445, 51404), (710, 32218), (724, 31595), (890, 25702), (905, 25276), (1420, 16109), (1780, 12851), (1810, 12638), (3620, 6319)]