64239880

素因数分解:

$2^3\times 5^1\times {\mathrm{433}}^1\times {\mathrm{3709}}^1$

素因数の和:4153

約数の個数: 32

約数和(自身を含む): 144912600

約数和(自身を除く): 80672720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 433, 866, 1732, 2165, 3464, 3709, 4330, 7418, 8660, 14836, 17320, 18545, 29672, 37090, 74180, 148360, 1605997, 3211994, 6423988, 8029985, 12847976, 16059970, 32119940, 64239880]

約数ペア:

[(1, 64239880), (2, 32119940), (4, 16059970), (5, 12847976), (8, 8029985), (10, 6423988), (20, 3211994), (40, 1605997), (433, 148360), (866, 74180), (1732, 37090), (2165, 29672), (3464, 18545), (3709, 17320), (4330, 14836), (7418, 8660)]