71714420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{40289}}^1$

素因数の和:40387

約数の個数: 24

約数和(自身を含む): 152296200

約数和(自身を除く): 80581780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 40289, 80578, 161156, 201445, 402890, 805780, 3585721, 7171442, 14342884, 17928605, 35857210, 71714420]

約数ペア:

[(1, 71714420), (2, 35857210), (4, 17928605), (5, 14342884), (10, 7171442), (20, 3585721), (89, 805780), (178, 402890), (356, 201445), (445, 161156), (890, 80578), (1780, 40289)]