1640785540

素因数分解:

$2^2\times 5^1\times {\mathrm{1487}}^1\times {\mathrm{55171}}^1$

素因数の和:56667

約数の個数: 24

約数和(自身を含む): 3448029312

約数和(自身を除く): 1807243772

約数列:

[1, 2, 4, 5, 10, 20, 1487, 2974, 5948, 7435, 14870, 29740, 55171, 110342, 220684, 275855, 551710, 1103420, 82039277, 164078554, 328157108, 410196385, 820392770, 1640785540]

約数ペア:

[(1, 1640785540), (2, 820392770), (4, 410196385), (5, 328157108), (10, 164078554), (20, 82039277), (1487, 1103420), (2974, 551710), (5948, 275855), (7435, 220684), (14870, 110342), (29740, 55171)]