1279897456

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{983}}^1\times {\mathrm{4283}}^1$

素因数の和:5293

約数の個数: 40

約数和(自身を含む): 2613582720

約数和(自身を除く): 1333685264

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 983, 1966, 3932, 4283, 7864, 8566, 15728, 17132, 18677, 34264, 37354, 68528, 74708, 81377, 149416, 162754, 298832, 325508, 651016, 1302032, 4210189, 8420378, 16840756, 33681512, 67363024, 79993591, 159987182, 319974364, 639948728, 1279897456]

約数ペア:

[(1, 1279897456), (2, 639948728), (4, 319974364), (8, 159987182), (16, 79993591), (19, 67363024), (38, 33681512), (76, 16840756), (152, 8420378), (304, 4210189), (983, 1302032), (1966, 651016), (3932, 325508), (4283, 298832), (7864, 162754), (8566, 149416), (15728, 81377), (17132, 74708), (18677, 68528), (34264, 37354)]