21288240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29567}}^1$

素因数の和:29586

約数の個数: 60

約数和(自身を含む): 71495424

約数和(自身を除く): 50207184

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29567, 59134, 88701, 118268, 147835, 177402, 236536, 266103, 295670, 354804, 443505, 473072, 532206, 591340, 709608, 887010, 1064412, 1182680, 1330515, 1419216, 1774020, 2128824, 2365360, 2661030, 3548040, 4257648, 5322060, 7096080, 10644120, 21288240]

約数ペア:

[(1, 21288240), (2, 10644120), (3, 7096080), (4, 5322060), (5, 4257648), (6, 3548040), (8, 2661030), (9, 2365360), (10, 2128824), (12, 1774020), (15, 1419216), (16, 1330515), (18, 1182680), (20, 1064412), (24, 887010), (30, 709608), (36, 591340), (40, 532206), (45, 473072), (48, 443505), (60, 354804), (72, 295670), (80, 266103), (90, 236536), (120, 177402), (144, 147835), (180, 118268), (240, 88701), (360, 59134), (720, 29567)]