81880740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{151631}}^1$

素因数の和:151649

約数の個数: 48

約数和(自身を含む): 254741760

約数和(自身を除く): 172861020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 151631, 303262, 454893, 606524, 758155, 909786, 1364679, 1516310, 1819572, 2274465, 2729358, 3032620, 4094037, 4548930, 5458716, 6823395, 8188074, 9097860, 13646790, 16376148, 20470185, 27293580, 40940370, 81880740]

約数ペア:

[(1, 81880740), (2, 40940370), (3, 27293580), (4, 20470185), (5, 16376148), (6, 13646790), (9, 9097860), (10, 8188074), (12, 6823395), (15, 5458716), (18, 4548930), (20, 4094037), (27, 3032620), (30, 2729358), (36, 2274465), (45, 1819572), (54, 1516310), (60, 1364679), (90, 909786), (108, 758155), (135, 606524), (180, 454893), (270, 303262), (540, 151631)]