64920325

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{461}}^1$

素因数の和:645

約数の個数: 24

約数和(自身を含む): 83182176

約数和(自身を除く): 18261851

約数列:

[1, 5, 25, 43, 131, 215, 461, 655, 1075, 2305, 3275, 5633, 11525, 19823, 28165, 60391, 99115, 140825, 301955, 495575, 1509775, 2596813, 12984065, 64920325]

約数ペア:

[(1, 64920325), (5, 12984065), (25, 2596813), (43, 1509775), (131, 495575), (215, 301955), (461, 140825), (655, 99115), (1075, 60391), (2305, 28165), (3275, 19823), (5633, 11525)]