64970140

素因数分解:

$2^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{7753}}^1$

素因数の和:8181

約数の個数: 24

約数和(自身を含む): 136780560

約数和(自身を除く): 71810420

約数列:

[1, 2, 4, 5, 10, 20, 419, 838, 1676, 2095, 4190, 7753, 8380, 15506, 31012, 38765, 77530, 155060, 3248507, 6497014, 12994028, 16242535, 32485070, 64970140]

約数ペア:

[(1, 64970140), (2, 32485070), (4, 16242535), (5, 12994028), (10, 6497014), (20, 3248507), (419, 155060), (838, 77530), (1676, 38765), (2095, 31012), (4190, 15506), (7753, 8380)]