20274155

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 29417472

約数和(自身を除く): 9143317

約数列:

[1, 5, 11, 23, 31, 47, 55, 115, 121, 155, 235, 253, 341, 517, 605, 713, 1081, 1265, 1457, 1705, 2585, 2783, 3565, 3751, 5405, 5687, 7285, 7843, 11891, 13915, 16027, 18755, 28435, 33511, 39215, 59455, 80135, 86273, 130801, 167555, 176297, 368621, 431365, 654005, 881485, 1843105, 4054831, 20274155]

約数ペア:

[(1, 20274155), (5, 4054831), (11, 1843105), (23, 881485), (31, 654005), (47, 431365), (55, 368621), (115, 176297), (121, 167555), (155, 130801), (235, 86273), (253, 80135), (341, 59455), (517, 39215), (605, 33511), (713, 28435), (1081, 18755), (1265, 16027), (1457, 13915), (1705, 11891), (2585, 7843), (2783, 7285), (3565, 5687), (3751, 5405)]