20057220

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{4127}}^1$

素因数の和:4151

約数の個数: 72

約数和(自身を含む): 63108864

約数和(自身を除く): 43051644

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, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4127, 4860, 8254, 12381, 16508, 20635, 24762, 37143, 41270, 49524, 61905, 74286, 82540, 111429, 123810, 148572, 185715, 222858, 247620, 334287, 371430, 445716, 557145, 668574, 742860, 1002861, 1114290, 1337148, 1671435, 2005722, 2228580, 3342870, 4011444, 5014305, 6685740, 10028610, 20057220]

約数ペア:

[(1, 20057220), (2, 10028610), (3, 6685740), (4, 5014305), (5, 4011444), (6, 3342870), (9, 2228580), (10, 2005722), (12, 1671435), (15, 1337148), (18, 1114290), (20, 1002861), (27, 742860), (30, 668574), (36, 557145), (45, 445716), (54, 371430), (60, 334287), (81, 247620), (90, 222858), (108, 185715), (135, 148572), (162, 123810), (180, 111429), (243, 82540), (270, 74286), (324, 61905), (405, 49524), (486, 41270), (540, 37143), (810, 24762), (972, 20635), (1215, 16508), (1620, 12381), (2430, 8254), (4127, 4860)]