2178490655

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3331}}^1$

素因数の和:3428

約数の個数: 48

約数和(自身を含む): 3063094272

約数和(自身を除く): 884603617

約数列:

[1, 5, 11, 23, 47, 55, 115, 121, 235, 253, 517, 605, 1081, 1265, 2585, 2783, 3331, 5405, 5687, 11891, 13915, 16655, 28435, 36641, 59455, 76613, 130801, 156557, 183205, 383065, 403051, 654005, 782785, 842743, 1722127, 2015255, 3600811, 4213715, 8610635, 9270173, 18004055, 18943397, 39608921, 46350865, 94716985, 198044605, 435698131, 2178490655]

約数ペア:

[(1, 2178490655), (5, 435698131), (11, 198044605), (23, 94716985), (47, 46350865), (55, 39608921), (115, 18943397), (121, 18004055), (235, 9270173), (253, 8610635), (517, 4213715), (605, 3600811), (1081, 2015255), (1265, 1722127), (2585, 842743), (2783, 782785), (3331, 654005), (5405, 403051), (5687, 383065), (11891, 183205), (13915, 156557), (16655, 130801), (28435, 76613), (36641, 59455)]