20123248556

素因数分解:

$2^2\times {\mathrm{71}}^2\times {\mathrm{467}}^1\times {\mathrm{2137}}^1$

素因数の和:2750

約数の個数: 36

約数和(自身を含む): 35811901944

約数和(自身を除く): 15688653388

約数列:

[1, 2, 4, 71, 142, 284, 467, 934, 1868, 2137, 4274, 5041, 8548, 10082, 20164, 33157, 66314, 132628, 151727, 303454, 606908, 997979, 1995958, 2354147, 3991916, 4708294, 9416588, 10772617, 21545234, 43090468, 70856509, 141713018, 283426036, 5030812139, 10061624278, 20123248556]

約数ペア:

[(1, 20123248556), (2, 10061624278), (4, 5030812139), (71, 283426036), (142, 141713018), (284, 70856509), (467, 43090468), (934, 21545234), (1868, 10772617), (2137, 9416588), (4274, 4708294), (5041, 3991916), (8548, 2354147), (10082, 1995958), (20164, 997979), (33157, 606908), (66314, 303454), (132628, 151727)]