639747720

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{197453}}^1$

素因数の和:197476

約数の個数: 80

約数和(自身を含む): 2150274060

約数和(自身を除く): 1510526340

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 197453, 394906, 592359, 789812, 987265, 1184718, 1579624, 1777077, 1974530, 2369436, 2961795, 3554154, 3949060, 4738872, 5331231, 5923590, 7108308, 7898120, 8885385, 10662462, 11847180, 14216616, 15993693, 17770770, 21324924, 23694360, 26656155, 31987386, 35541540, 42649848, 53312310, 63974772, 71083080, 79968465, 106624620, 127949544, 159936930, 213249240, 319873860, 639747720]

約数ペア:

[(1, 639747720), (2, 319873860), (3, 213249240), (4, 159936930), (5, 127949544), (6, 106624620), (8, 79968465), (9, 71083080), (10, 63974772), (12, 53312310), (15, 42649848), (18, 35541540), (20, 31987386), (24, 26656155), (27, 23694360), (30, 21324924), (36, 17770770), (40, 15993693), (45, 14216616), (54, 11847180), (60, 10662462), (72, 8885385), (81, 7898120), (90, 7108308), (108, 5923590), (120, 5331231), (135, 4738872), (162, 3949060), (180, 3554154), (216, 2961795), (270, 2369436), (324, 1974530), (360, 1777077), (405, 1579624), (540, 1184718), (648, 987265), (810, 789812), (1080, 592359), (1620, 394906), (3240, 197453)]