79742800

素因数分解:

$2^4\times 5^2\times {\mathrm{199357}}^1$

素因数の和:199375

約数の個数: 30

約数和(自身を含む): 191583038

約数和(自身を除く): 111840238

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 199357, 398714, 797428, 996785, 1594856, 1993570, 3189712, 3987140, 4983925, 7974280, 9967850, 15948560, 19935700, 39871400, 79742800]

約数ペア:

[(1, 79742800), (2, 39871400), (4, 19935700), (5, 15948560), (8, 9967850), (10, 7974280), (16, 4983925), (20, 3987140), (25, 3189712), (40, 1993570), (50, 1594856), (80, 996785), (100, 797428), (200, 398714), (400, 199357)]