80587960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{49139}}^1$

素因数の和:49191

約数の個数: 32

約数和(自身を含む): 185749200

約数和(自身を除く): 105161240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 49139, 98278, 196556, 245695, 393112, 491390, 982780, 1965560, 2014699, 4029398, 8058796, 10073495, 16117592, 20146990, 40293980, 80587960]

約数ペア:

[(1, 80587960), (2, 40293980), (4, 20146990), (5, 16117592), (8, 10073495), (10, 8058796), (20, 4029398), (40, 2014699), (41, 1965560), (82, 982780), (164, 491390), (205, 393112), (328, 245695), (410, 196556), (820, 98278), (1640, 49139)]