19645740

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:269

約数の個数: 120

約数和(自身を含む): 62894832

約数和(自身を除く): 43249092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 67, 81, 90, 108, 134, 135, 162, 180, 181, 201, 268, 270, 324, 335, 362, 402, 405, 540, 543, 603, 670, 724, 804, 810, 905, 1005, 1086, 1206, 1340, 1620, 1629, 1809, 1810, 2010, 2172, 2412, 2715, 3015, 3258, 3618, 3620, 4020, 4887, 5427, 5430, 6030, 6516, 7236, 8145, 9045, 9774, 10854, 10860, 12060, 12127, 14661, 16290, 18090, 19548, 21708, 24254, 24435, 27135, 29322, 32580, 36180, 36381, 48508, 48870, 54270, 58644, 60635, 72762, 73305, 97740, 108540, 109143, 121270, 145524, 146610, 181905, 218286, 242540, 293220, 327429, 363810, 436572, 545715, 654858, 727620, 982287, 1091430, 1309716, 1637145, 1964574, 2182860, 3274290, 3929148, 4911435, 6548580, 9822870, 19645740]

約数ペア:

[(1, 19645740), (2, 9822870), (3, 6548580), (4, 4911435), (5, 3929148), (6, 3274290), (9, 2182860), (10, 1964574), (12, 1637145), (15, 1309716), (18, 1091430), (20, 982287), (27, 727620), (30, 654858), (36, 545715), (45, 436572), (54, 363810), (60, 327429), (67, 293220), (81, 242540), (90, 218286), (108, 181905), (134, 146610), (135, 145524), (162, 121270), (180, 109143), (181, 108540), (201, 97740), (268, 73305), (270, 72762), (324, 60635), (335, 58644), (362, 54270), (402, 48870), (405, 48508), (540, 36381), (543, 36180), (603, 32580), (670, 29322), (724, 27135), (804, 24435), (810, 24254), (905, 21708), (1005, 19548), (1086, 18090), (1206, 16290), (1340, 14661), (1620, 12127), (1629, 12060), (1809, 10860), (1810, 10854), (2010, 9774), (2172, 9045), (2412, 8145), (2715, 7236), (3015, 6516), (3258, 6030), (3618, 5430), (3620, 5427), (4020, 4887)]