91660180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{251}}^1$

素因数の和:341

約数の個数: 72

約数和(自身を含む): 210198240

約数和(自身を除く): 118538060

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 251, 310, 380, 502, 589, 620, 961, 1004, 1178, 1255, 1922, 2356, 2510, 2945, 3844, 4769, 4805, 5020, 5890, 7781, 9538, 9610, 11780, 15562, 18259, 19076, 19220, 23845, 31124, 36518, 38905, 47690, 73036, 77810, 91295, 95380, 147839, 155620, 182590, 241211, 295678, 365180, 482422, 591356, 739195, 964844, 1206055, 1478390, 2412110, 2956780, 4583009, 4824220, 9166018, 18332036, 22915045, 45830090, 91660180]

約数ペア:

[(1, 91660180), (2, 45830090), (4, 22915045), (5, 18332036), (10, 9166018), (19, 4824220), (20, 4583009), (31, 2956780), (38, 2412110), (62, 1478390), (76, 1206055), (95, 964844), (124, 739195), (155, 591356), (190, 482422), (251, 365180), (310, 295678), (380, 241211), (502, 182590), (589, 155620), (620, 147839), (961, 95380), (1004, 91295), (1178, 77810), (1255, 73036), (1922, 47690), (2356, 38905), (2510, 36518), (2945, 31124), (3844, 23845), (4769, 19220), (4805, 19076), (5020, 18259), (5890, 15562), (7781, 11780), (9538, 9610)]