19723140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:186

約数の個数: 144

約数和(自身を含む): 64646400

約数和(自身を除く): 44923260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 73, 76, 79, 90, 95, 114, 146, 158, 171, 180, 190, 219, 228, 237, 285, 292, 316, 342, 365, 380, 395, 438, 474, 570, 657, 684, 711, 730, 790, 855, 876, 948, 1095, 1140, 1185, 1314, 1387, 1422, 1460, 1501, 1580, 1710, 2190, 2370, 2628, 2774, 2844, 3002, 3285, 3420, 3555, 4161, 4380, 4503, 4740, 5548, 5767, 6004, 6570, 6935, 7110, 7505, 8322, 9006, 11534, 12483, 13140, 13509, 13870, 14220, 15010, 16644, 17301, 18012, 20805, 22515, 23068, 24966, 27018, 27740, 28835, 30020, 34602, 41610, 45030, 49932, 51903, 54036, 57670, 62415, 67545, 69204, 83220, 86505, 90060, 103806, 109573, 115340, 124830, 135090, 173010, 207612, 219146, 249660, 259515, 270180, 328719, 346020, 438292, 519030, 547865, 657438, 986157, 1038060, 1095730, 1314876, 1643595, 1972314, 2191460, 3287190, 3944628, 4930785, 6574380, 9861570, 19723140]

約数ペア:

[(1, 19723140), (2, 9861570), (3, 6574380), (4, 4930785), (5, 3944628), (6, 3287190), (9, 2191460), (10, 1972314), (12, 1643595), (15, 1314876), (18, 1095730), (19, 1038060), (20, 986157), (30, 657438), (36, 547865), (38, 519030), (45, 438292), (57, 346020), (60, 328719), (73, 270180), (76, 259515), (79, 249660), (90, 219146), (95, 207612), (114, 173010), (146, 135090), (158, 124830), (171, 115340), (180, 109573), (190, 103806), (219, 90060), (228, 86505), (237, 83220), (285, 69204), (292, 67545), (316, 62415), (342, 57670), (365, 54036), (380, 51903), (395, 49932), (438, 45030), (474, 41610), (570, 34602), (657, 30020), (684, 28835), (711, 27740), (730, 27018), (790, 24966), (855, 23068), (876, 22515), (948, 20805), (1095, 18012), (1140, 17301), (1185, 16644), (1314, 15010), (1387, 14220), (1422, 13870), (1460, 13509), (1501, 13140), (1580, 12483), (1710, 11534), (2190, 9006), (2370, 8322), (2628, 7505), (2774, 7110), (2844, 6935), (3002, 6570), (3285, 6004), (3420, 5767), (3555, 5548), (4161, 4740), (4380, 4503)]