80945890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{10391}}^1$

素因数の和:10458

約数の個数: 32

約数和(自身を含む): 157127040

約数和(自身を除く): 76181150

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 410, 779, 1558, 3895, 7790, 10391, 20782, 51955, 103910, 197429, 394858, 426031, 852062, 987145, 1974290, 2130155, 4260310, 8094589, 16189178, 40472945, 80945890]

約数ペア:

[(1, 80945890), (2, 40472945), (5, 16189178), (10, 8094589), (19, 4260310), (38, 2130155), (41, 1974290), (82, 987145), (95, 852062), (190, 426031), (205, 394858), (410, 197429), (779, 103910), (1558, 51955), (3895, 20782), (7790, 10391)]