18431140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:102

約数の個数: 144

約数和(自身を含む): 51649920

約数和(自身を除く): 33218780

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 41, 52, 65, 70, 76, 82, 91, 95, 130, 133, 140, 164, 169, 182, 190, 205, 247, 260, 266, 287, 338, 364, 380, 410, 455, 494, 532, 533, 574, 665, 676, 779, 820, 845, 910, 988, 1066, 1148, 1183, 1235, 1330, 1435, 1558, 1690, 1729, 1820, 2132, 2366, 2470, 2660, 2665, 2870, 3116, 3211, 3380, 3458, 3731, 3895, 4732, 4940, 5330, 5453, 5740, 5915, 6422, 6916, 6929, 7462, 7790, 8645, 10127, 10660, 10906, 11830, 12844, 13858, 14924, 15580, 16055, 17290, 18655, 20254, 21812, 22477, 23660, 27265, 27716, 32110, 34580, 34645, 37310, 40508, 44954, 48503, 50635, 54530, 64220, 69290, 70889, 74620, 89908, 97006, 101270, 109060, 112385, 131651, 138580, 141778, 194012, 202540, 224770, 242515, 263302, 283556, 354445, 449540, 485030, 526604, 658255, 708890, 921557, 970060, 1316510, 1417780, 1843114, 2633020, 3686228, 4607785, 9215570, 18431140]

約数ペア:

[(1, 18431140), (2, 9215570), (4, 4607785), (5, 3686228), (7, 2633020), (10, 1843114), (13, 1417780), (14, 1316510), (19, 970060), (20, 921557), (26, 708890), (28, 658255), (35, 526604), (38, 485030), (41, 449540), (52, 354445), (65, 283556), (70, 263302), (76, 242515), (82, 224770), (91, 202540), (95, 194012), (130, 141778), (133, 138580), (140, 131651), (164, 112385), (169, 109060), (182, 101270), (190, 97006), (205, 89908), (247, 74620), (260, 70889), (266, 69290), (287, 64220), (338, 54530), (364, 50635), (380, 48503), (410, 44954), (455, 40508), (494, 37310), (532, 34645), (533, 34580), (574, 32110), (665, 27716), (676, 27265), (779, 23660), (820, 22477), (845, 21812), (910, 20254), (988, 18655), (1066, 17290), (1148, 16055), (1183, 15580), (1235, 14924), (1330, 13858), (1435, 12844), (1558, 11830), (1690, 10906), (1729, 10660), (1820, 10127), (2132, 8645), (2366, 7790), (2470, 7462), (2660, 6929), (2665, 6916), (2870, 6422), (3116, 5915), (3211, 5740), (3380, 5453), (3458, 5330), (3731, 4940), (3895, 4732)]