254088380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139609}}^1$

素因数の和:139638

約数の個数: 48

約数和(自身を含む): 656725440

約数和(自身を除く): 402637060

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 139609, 279218, 558436, 698045, 977263, 1396090, 1814917, 1954526, 2792180, 3629834, 3909052, 4886315, 7259668, 9074585, 9772630, 12704419, 18149170, 19545260, 25408838, 36298340, 50817676, 63522095, 127044190, 254088380]

約数ペア:

[(1, 254088380), (2, 127044190), (4, 63522095), (5, 50817676), (7, 36298340), (10, 25408838), (13, 19545260), (14, 18149170), (20, 12704419), (26, 9772630), (28, 9074585), (35, 7259668), (52, 4886315), (65, 3909052), (70, 3629834), (91, 2792180), (130, 1954526), (140, 1814917), (182, 1396090), (260, 977263), (364, 698045), (455, 558436), (910, 279218), (1820, 139609)]