64425160

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{4057}}^1$

素因数の和:4465

約数の個数: 32

約数和(自身を含む): 145357560

約数和(自身を除く): 80932400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 4057, 7940, 8114, 15880, 16228, 20285, 32456, 40570, 81140, 162280, 1610629, 3221258, 6442516, 8053145, 12885032, 16106290, 32212580, 64425160]

約数ペア:

[(1, 64425160), (2, 32212580), (4, 16106290), (5, 12885032), (8, 8053145), (10, 6442516), (20, 3221258), (40, 1610629), (397, 162280), (794, 81140), (1588, 40570), (1985, 32456), (3176, 20285), (3970, 16228), (4057, 15880), (7940, 8114)]