20151990

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{8293}}^1$

素因数の和:8315

約数の個数: 48

約数和(自身を含む): 54342288

約数和(自身を除く): 34190298

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 8293, 16586, 24879, 41465, 49758, 74637, 82930, 124395, 149274, 223911, 248790, 373185, 447822, 671733, 746370, 1119555, 1343466, 2015199, 2239110, 3358665, 4030398, 6717330, 10075995, 20151990]

約数ペア:

[(1, 20151990), (2, 10075995), (3, 6717330), (5, 4030398), (6, 3358665), (9, 2239110), (10, 2015199), (15, 1343466), (18, 1119555), (27, 746370), (30, 671733), (45, 447822), (54, 373185), (81, 248790), (90, 223911), (135, 149274), (162, 124395), (243, 82930), (270, 74637), (405, 49758), (486, 41465), (810, 24879), (1215, 16586), (2430, 8293)]