51777500

素因数分解:

$2^2\times 5^4\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:312

約数の個数: 60

約数和(自身を含む): 114807000

約数和(自身を除く): 63029500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 139, 149, 250, 278, 298, 500, 556, 596, 625, 695, 745, 1250, 1390, 1490, 2500, 2780, 2980, 3475, 3725, 6950, 7450, 13900, 14900, 17375, 18625, 20711, 34750, 37250, 41422, 69500, 74500, 82844, 86875, 93125, 103555, 173750, 186250, 207110, 347500, 372500, 414220, 517775, 1035550, 2071100, 2588875, 5177750, 10355500, 12944375, 25888750, 51777500]

約数ペア:

[(1, 51777500), (2, 25888750), (4, 12944375), (5, 10355500), (10, 5177750), (20, 2588875), (25, 2071100), (50, 1035550), (100, 517775), (125, 414220), (139, 372500), (149, 347500), (250, 207110), (278, 186250), (298, 173750), (500, 103555), (556, 93125), (596, 86875), (625, 82844), (695, 74500), (745, 69500), (1250, 41422), (1390, 37250), (1490, 34750), (2500, 20711), (2780, 18625), (2980, 17375), (3475, 14900), (3725, 13900), (6950, 7450)]