19995660

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12343}}^1$

素因数の和:12364

約数の個数: 60

約数和(自身を含む): 62732208

約数和(自身を除く): 42736548

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, 12343, 24686, 37029, 49372, 61715, 74058, 111087, 123430, 148116, 185145, 222174, 246860, 333261, 370290, 444348, 555435, 666522, 740580, 999783, 1110870, 1333044, 1666305, 1999566, 2221740, 3332610, 3999132, 4998915, 6665220, 9997830, 19995660]

約数ペア:

[(1, 19995660), (2, 9997830), (3, 6665220), (4, 4998915), (5, 3999132), (6, 3332610), (9, 2221740), (10, 1999566), (12, 1666305), (15, 1333044), (18, 1110870), (20, 999783), (27, 740580), (30, 666522), (36, 555435), (45, 444348), (54, 370290), (60, 333261), (81, 246860), (90, 222174), (108, 185145), (135, 148116), (162, 123430), (180, 111087), (270, 74058), (324, 61715), (405, 49372), (540, 37029), (810, 24686), (1620, 12343)]