20608160

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6779}}^1$

素因数の和:6813

約数の個数: 48

約数和(自身を含む): 51256800

約数和(自身を除く): 30648640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6779, 13558, 27116, 33895, 54232, 67790, 108464, 128801, 135580, 216928, 257602, 271160, 515204, 542320, 644005, 1030408, 1084640, 1288010, 2060816, 2576020, 4121632, 5152040, 10304080, 20608160]

約数ペア:

[(1, 20608160), (2, 10304080), (4, 5152040), (5, 4121632), (8, 2576020), (10, 2060816), (16, 1288010), (19, 1084640), (20, 1030408), (32, 644005), (38, 542320), (40, 515204), (76, 271160), (80, 257602), (95, 216928), (152, 135580), (160, 128801), (190, 108464), (304, 67790), (380, 54232), (608, 33895), (760, 27116), (1520, 13558), (3040, 6779)]