18966145

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 27578880

約数和(自身を除く): 8612735

約数列:

[1, 5, 11, 23, 29, 47, 55, 115, 121, 145, 235, 253, 319, 517, 605, 667, 1081, 1265, 1363, 1595, 2585, 2783, 3335, 3509, 5405, 5687, 6815, 7337, 11891, 13915, 14993, 17545, 28435, 31349, 36685, 59455, 74965, 80707, 130801, 156745, 164923, 344839, 403535, 654005, 824615, 1724195, 3793229, 18966145]

約数ペア:

[(1, 18966145), (5, 3793229), (11, 1724195), (23, 824615), (29, 654005), (47, 403535), (55, 344839), (115, 164923), (121, 156745), (145, 130801), (235, 80707), (253, 74965), (319, 59455), (517, 36685), (605, 31349), (667, 28435), (1081, 17545), (1265, 14993), (1363, 13915), (1595, 11891), (2585, 7337), (2783, 6815), (3335, 5687), (3509, 5405)]