20107777520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13228801}}^1$

素因数の和:13228833

約数の個数: 40

約数和(自身を含む): 49211143440

約数和(自身を除く): 29103365920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13228801, 26457602, 52915204, 66144005, 105830408, 132288010, 211660816, 251347219, 264576020, 502694438, 529152040, 1005388876, 1058304080, 1256736095, 2010777752, 2513472190, 4021555504, 5026944380, 10053888760, 20107777520]

約数ペア:

[(1, 20107777520), (2, 10053888760), (4, 5026944380), (5, 4021555504), (8, 2513472190), (10, 2010777752), (16, 1256736095), (19, 1058304080), (20, 1005388876), (38, 529152040), (40, 502694438), (76, 264576020), (80, 251347219), (95, 211660816), (152, 132288010), (190, 105830408), (304, 66144005), (380, 52915204), (760, 26457602), (1520, 13228801)]