80861720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{106397}}^1$

素因数の和:106427

約数の個数: 32

約数和(自身を含む): 191516400

約数和(自身を除く): 110654680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 106397, 212794, 425588, 531985, 851176, 1063970, 2021543, 2127940, 4043086, 4255880, 8086172, 10107715, 16172344, 20215430, 40430860, 80861720]

約数ペア:

[(1, 80861720), (2, 40430860), (4, 20215430), (5, 16172344), (8, 10107715), (10, 8086172), (19, 4255880), (20, 4043086), (38, 2127940), (40, 2021543), (76, 1063970), (95, 851176), (152, 531985), (190, 425588), (380, 212794), (760, 106397)]