66995000

素因数分解:

$2^3\times 5^4\times {\mathrm{13399}}^1$

素因数の和:13425

約数の個数: 40

約数和(自身を含む): 156981000

約数和(自身を除く): 89986000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 13399, 26798, 53596, 66995, 107192, 133990, 267980, 334975, 535960, 669950, 1339900, 1674875, 2679800, 3349750, 6699500, 8374375, 13399000, 16748750, 33497500, 66995000]

約数ペア:

[(1, 66995000), (2, 33497500), (4, 16748750), (5, 13399000), (8, 8374375), (10, 6699500), (20, 3349750), (25, 2679800), (40, 1674875), (50, 1339900), (100, 669950), (125, 535960), (200, 334975), (250, 267980), (500, 133990), (625, 107192), (1000, 66995), (1250, 53596), (2500, 26798), (5000, 13399)]