208045840

素因数分解:

$2^4\times 5^1\times {\mathrm{829}}^1\times {\mathrm{3137}}^1$

素因数の和:3979

約数の個数: 40

約数和(自身を含む): 484444440

約数和(自身を除く): 276398600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 829, 1658, 3137, 3316, 4145, 6274, 6632, 8290, 12548, 13264, 15685, 16580, 25096, 31370, 33160, 50192, 62740, 66320, 125480, 250960, 2600573, 5201146, 10402292, 13002865, 20804584, 26005730, 41609168, 52011460, 104022920, 208045840]

約数ペア:

[(1, 208045840), (2, 104022920), (4, 52011460), (5, 41609168), (8, 26005730), (10, 20804584), (16, 13002865), (20, 10402292), (40, 5201146), (80, 2600573), (829, 250960), (1658, 125480), (3137, 66320), (3316, 62740), (4145, 50192), (6274, 33160), (6632, 31370), (8290, 25096), (12548, 16580), (13264, 15685)]