40750000

素因数分解:

$2^4\times 5^6\times {\mathrm{163}}^1$

素因数の和:201

約数の個数: 70

約数和(自身を含む): 99295604

約数和(自身を除く): 58545604

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 163, 200, 250, 326, 400, 500, 625, 652, 815, 1000, 1250, 1304, 1630, 2000, 2500, 2608, 3125, 3260, 4075, 5000, 6250, 6520, 8150, 10000, 12500, 13040, 15625, 16300, 20375, 25000, 31250, 32600, 40750, 50000, 62500, 65200, 81500, 101875, 125000, 163000, 203750, 250000, 326000, 407500, 509375, 815000, 1018750, 1630000, 2037500, 2546875, 4075000, 5093750, 8150000, 10187500, 20375000, 40750000]

約数ペア:

[(1, 40750000), (2, 20375000), (4, 10187500), (5, 8150000), (8, 5093750), (10, 4075000), (16, 2546875), (20, 2037500), (25, 1630000), (40, 1018750), (50, 815000), (80, 509375), (100, 407500), (125, 326000), (163, 250000), (200, 203750), (250, 163000), (326, 125000), (400, 101875), (500, 81500), (625, 65200), (652, 62500), (815, 50000), (1000, 40750), (1250, 32600), (1304, 31250), (1630, 25000), (2000, 20375), (2500, 16300), (2608, 15625), (3125, 13040), (3260, 12500), (4075, 10000), (5000, 8150), (6250, 6520)]