20389736

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2531}}^1$

素因数の和:2609

約数の個数: 32

約数和(自身を含む): 41018400

約数和(自身を除く): 20628664

約数列:

[1, 2, 4, 8, 19, 38, 53, 76, 106, 152, 212, 424, 1007, 2014, 2531, 4028, 5062, 8056, 10124, 20248, 48089, 96178, 134143, 192356, 268286, 384712, 536572, 1073144, 2548717, 5097434, 10194868, 20389736]

約数ペア:

[(1, 20389736), (2, 10194868), (4, 5097434), (8, 2548717), (19, 1073144), (38, 536572), (53, 384712), (76, 268286), (106, 192356), (152, 134143), (212, 96178), (424, 48089), (1007, 20248), (2014, 10124), (2531, 8056), (4028, 5062)]