2017406480

素因数分解:

$2^4\times 5^1\times {\mathrm{641}}^1\times {\mathrm{39341}}^1$

素因数の和:39995

約数の個数: 40

約数和(自身を含む): 4697906904

約数和(自身を除く): 2680500424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641, 1282, 2564, 3205, 5128, 6410, 10256, 12820, 25640, 39341, 51280, 78682, 157364, 196705, 314728, 393410, 629456, 786820, 1573640, 3147280, 25217581, 50435162, 100870324, 126087905, 201740648, 252175810, 403481296, 504351620, 1008703240, 2017406480]

約数ペア:

[(1, 2017406480), (2, 1008703240), (4, 504351620), (5, 403481296), (8, 252175810), (10, 201740648), (16, 126087905), (20, 100870324), (40, 50435162), (80, 25217581), (641, 3147280), (1282, 1573640), (2564, 786820), (3205, 629456), (5128, 393410), (6410, 314728), (10256, 196705), (12820, 157364), (25640, 78682), (39341, 51280)]