2171036360

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{889769}}^1$

素因数の和:889841

約数の個数: 32

約数和(自身を含む): 4964916600

約数和(自身を除く): 2793880240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 889769, 1779538, 3559076, 4448845, 7118152, 8897690, 17795380, 35590760, 54275909, 108551818, 217103636, 271379545, 434207272, 542759090, 1085518180, 2171036360]

約数ペア:

[(1, 2171036360), (2, 1085518180), (4, 542759090), (5, 434207272), (8, 271379545), (10, 217103636), (20, 108551818), (40, 54275909), (61, 35590760), (122, 17795380), (244, 8897690), (305, 7118152), (488, 4448845), (610, 3559076), (1220, 1779538), (2440, 889769)]