2190389680

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{307639}}^1$

素因数の和:307741

約数の個数: 40

約数和(自身を含む): 5149893600

約数和(自身を除く): 2959503920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 307639, 615278, 1230556, 1538195, 2461112, 3076390, 4922224, 6152780, 12305560, 24611120, 27379871, 54759742, 109519484, 136899355, 219038968, 273798710, 438077936, 547597420, 1095194840, 2190389680]

約数ペア:

[(1, 2190389680), (2, 1095194840), (4, 547597420), (5, 438077936), (8, 273798710), (10, 219038968), (16, 136899355), (20, 109519484), (40, 54759742), (80, 27379871), (89, 24611120), (178, 12305560), (356, 6152780), (445, 4922224), (712, 3076390), (890, 2461112), (1424, 1538195), (1780, 1230556), (3560, 615278), (7120, 307639)]