478978000

素因数分解:

$2^4\times 5^3\times {\mathrm{239489}}^1$

素因数の和:239512

約数の個数: 40

約数和(自身を含む): 1158173640

約数和(自身を除く): 679195640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 239489, 478978, 957956, 1197445, 1915912, 2394890, 3831824, 4789780, 5987225, 9579560, 11974450, 19159120, 23948900, 29936125, 47897800, 59872250, 95795600, 119744500, 239489000, 478978000]

約数ペア:

[(1, 478978000), (2, 239489000), (4, 119744500), (5, 95795600), (8, 59872250), (10, 47897800), (16, 29936125), (20, 23948900), (25, 19159120), (40, 11974450), (50, 9579560), (80, 5987225), (100, 4789780), (125, 3831824), (200, 2394890), (250, 1915912), (400, 1197445), (500, 957956), (1000, 478978), (2000, 239489)]