290319260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{188519}}^1$

素因数の和:188546

約数の個数: 48

約数和(自身を含む): 760112640

約数和(自身を除く): 469793380

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 188519, 377038, 754076, 942595, 1319633, 1885190, 2073709, 2639266, 3770380, 4147418, 5278532, 6598165, 8294836, 10368545, 13196330, 14515963, 20737090, 26392660, 29031926, 41474180, 58063852, 72579815, 145159630, 290319260]

約数ペア:

[(1, 290319260), (2, 145159630), (4, 72579815), (5, 58063852), (7, 41474180), (10, 29031926), (11, 26392660), (14, 20737090), (20, 14515963), (22, 13196330), (28, 10368545), (35, 8294836), (44, 6598165), (55, 5278532), (70, 4147418), (77, 3770380), (110, 2639266), (140, 2073709), (154, 1885190), (220, 1319633), (308, 942595), (385, 754076), (770, 377038), (1540, 188519)]