20823480

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{6427}}^1$

素因数の和:6450

約数の個数: 80

約数和(自身を含む): 70000920

約数和(自身を除く): 49177440

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, 6427, 12854, 19281, 25708, 32135, 38562, 51416, 57843, 64270, 77124, 96405, 115686, 128540, 154248, 173529, 192810, 231372, 257080, 289215, 347058, 385620, 462744, 520587, 578430, 694116, 771240, 867645, 1041174, 1156860, 1388232, 1735290, 2082348, 2313720, 2602935, 3470580, 4164696, 5205870, 6941160, 10411740, 20823480]

約数ペア:

[(1, 20823480), (2, 10411740), (3, 6941160), (4, 5205870), (5, 4164696), (6, 3470580), (8, 2602935), (9, 2313720), (10, 2082348), (12, 1735290), (15, 1388232), (18, 1156860), (20, 1041174), (24, 867645), (27, 771240), (30, 694116), (36, 578430), (40, 520587), (45, 462744), (54, 385620), (60, 347058), (72, 289215), (81, 257080), (90, 231372), (108, 192810), (120, 173529), (135, 154248), (162, 128540), (180, 115686), (216, 96405), (270, 77124), (324, 64270), (360, 57843), (405, 51416), (540, 38562), (648, 32135), (810, 25708), (1080, 19281), (1620, 12854), (3240, 6427)]