28901455

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 41674752

約数和(自身を除く): 12773297

約数列:

[1, 5, 11, 23, 31, 55, 67, 115, 121, 155, 253, 335, 341, 605, 713, 737, 1265, 1541, 1705, 2077, 2783, 3565, 3685, 3751, 7705, 7843, 8107, 10385, 13915, 16951, 18755, 22847, 39215, 40535, 47771, 84755, 86273, 114235, 186461, 238855, 251317, 431365, 525481, 932305, 1256585, 2627405, 5780291, 28901455]

約数ペア:

[(1, 28901455), (5, 5780291), (11, 2627405), (23, 1256585), (31, 932305), (55, 525481), (67, 431365), (115, 251317), (121, 238855), (155, 186461), (253, 114235), (335, 86273), (341, 84755), (605, 47771), (713, 40535), (737, 39215), (1265, 22847), (1541, 18755), (1705, 16951), (2077, 13915), (2783, 10385), (3565, 8107), (3685, 7843), (3751, 7705)]