81837180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23929}}^1$

素因数の和:23963

約数の個数: 72

約数和(自身を含む): 261315600

約数和(自身を除く): 179478420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 23929, 47858, 71787, 95716, 119645, 143574, 215361, 239290, 287148, 358935, 430722, 454651, 478580, 717870, 861444, 909302, 1076805, 1363953, 1435740, 1818604, 2153610, 2273255, 2727906, 4091859, 4307220, 4546510, 5455812, 6819765, 8183718, 9093020, 13639530, 16367436, 20459295, 27279060, 40918590, 81837180]

約数ペア:

[(1, 81837180), (2, 40918590), (3, 27279060), (4, 20459295), (5, 16367436), (6, 13639530), (9, 9093020), (10, 8183718), (12, 6819765), (15, 5455812), (18, 4546510), (19, 4307220), (20, 4091859), (30, 2727906), (36, 2273255), (38, 2153610), (45, 1818604), (57, 1435740), (60, 1363953), (76, 1076805), (90, 909302), (95, 861444), (114, 717870), (171, 478580), (180, 454651), (190, 430722), (228, 358935), (285, 287148), (342, 239290), (380, 215361), (570, 143574), (684, 119645), (855, 95716), (1140, 71787), (1710, 47858), (3420, 23929)]