81879660

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{50543}}^1$

素因数の和:50564

約数の個数: 60

約数和(自身を含む): 256864608

約数和(自身を除く): 174984948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 50543, 101086, 151629, 202172, 252715, 303258, 454887, 505430, 606516, 758145, 909774, 1010860, 1364661, 1516290, 1819548, 2274435, 2729322, 3032580, 4093983, 4548870, 5458644, 6823305, 8187966, 9097740, 13646610, 16375932, 20469915, 27293220, 40939830, 81879660]

約数ペア:

[(1, 81879660), (2, 40939830), (3, 27293220), (4, 20469915), (5, 16375932), (6, 13646610), (9, 9097740), (10, 8187966), (12, 6823305), (15, 5458644), (18, 4548870), (20, 4093983), (27, 3032580), (30, 2729322), (36, 2274435), (45, 1819548), (54, 1516290), (60, 1364661), (81, 1010860), (90, 909774), (108, 758145), (135, 606516), (162, 505430), (180, 454887), (270, 303258), (324, 252715), (405, 202172), (540, 151629), (810, 101086), (1620, 50543)]