80506780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{98179}}^1$

素因数の和:98229

約数の個数: 24

約数和(自身を含む): 173189520

約数和(自身を除く): 92682740

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 98179, 196358, 392716, 490895, 981790, 1963580, 4025339, 8050678, 16101356, 20126695, 40253390, 80506780]

約数ペア:

[(1, 80506780), (2, 40253390), (4, 20126695), (5, 16101356), (10, 8050678), (20, 4025339), (41, 1963580), (82, 981790), (164, 490895), (205, 392716), (410, 196358), (820, 98179)]