4238000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{163}}^1$

素因数の和:199

約数の個数: 80

約数和(自身を含む): 11103456

約数和(自身を除く): 6865456

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 163, 200, 208, 250, 260, 325, 326, 400, 500, 520, 650, 652, 815, 1000, 1040, 1300, 1304, 1625, 1630, 2000, 2119, 2600, 2608, 3250, 3260, 4075, 4238, 5200, 6500, 6520, 8150, 8476, 10595, 13000, 13040, 16300, 16952, 20375, 21190, 26000, 32600, 33904, 40750, 42380, 52975, 65200, 81500, 84760, 105950, 163000, 169520, 211900, 264875, 326000, 423800, 529750, 847600, 1059500, 2119000, 4238000]

約数ペア:

[(1, 4238000), (2, 2119000), (4, 1059500), (5, 847600), (8, 529750), (10, 423800), (13, 326000), (16, 264875), (20, 211900), (25, 169520), (26, 163000), (40, 105950), (50, 84760), (52, 81500), (65, 65200), (80, 52975), (100, 42380), (104, 40750), (125, 33904), (130, 32600), (163, 26000), (200, 21190), (208, 20375), (250, 16952), (260, 16300), (325, 13040), (326, 13000), (400, 10595), (500, 8476), (520, 8150), (650, 6520), (652, 6500), (815, 5200), (1000, 4238), (1040, 4075), (1300, 3260), (1304, 3250), (1625, 2608), (1630, 2600), (2000, 2119)]