64909880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{231821}}^1$

素因数の和:231839

約数の個数: 32

約数和(自身を含む): 166911840

約数和(自身を除く): 102001960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 231821, 463642, 927284, 1159105, 1622747, 1854568, 2318210, 3245494, 4636420, 6490988, 8113735, 9272840, 12981976, 16227470, 32454940, 64909880]

約数ペア:

[(1, 64909880), (2, 32454940), (4, 16227470), (5, 12981976), (7, 9272840), (8, 8113735), (10, 6490988), (14, 4636420), (20, 3245494), (28, 2318210), (35, 1854568), (40, 1622747), (56, 1159105), (70, 927284), (140, 463642), (280, 231821)]