64821440

素因数分解:

$2^6\times 5^1\times {\mathrm{202567}}^1$

素因数の和:202584

約数の個数: 28

約数和(自身を含む): 154356816

約数和(自身を除く): 89535376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 202567, 405134, 810268, 1012835, 1620536, 2025670, 3241072, 4051340, 6482144, 8102680, 12964288, 16205360, 32410720, 64821440]

約数ペア:

[(1, 64821440), (2, 32410720), (4, 16205360), (5, 12964288), (8, 8102680), (10, 6482144), (16, 4051340), (20, 3241072), (32, 2025670), (40, 1620536), (64, 1012835), (80, 810268), (160, 405134), (320, 202567)]