8401420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{22109}}^1$

素因数の和:22137

約数の個数: 24

約数和(自身を含む): 18572400

約数和(自身を除く): 10170980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 22109, 44218, 88436, 110545, 221090, 420071, 442180, 840142, 1680284, 2100355, 4200710, 8401420]

約数ペア:

[(1, 8401420), (2, 4200710), (4, 2100355), (5, 1680284), (10, 840142), (19, 442180), (20, 420071), (38, 221090), (76, 110545), (95, 88436), (190, 44218), (380, 22109)]