1629740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1663}}^1$

素因数の和:1686

約数の個数: 36

約数和(自身を含む): 3983616

約数和(自身を除く): 2353876

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1663, 3326, 6652, 8315, 11641, 16630, 23282, 33260, 46564, 58205, 81487, 116410, 162974, 232820, 325948, 407435, 814870, 1629740]

約数ペア:

[(1, 1629740), (2, 814870), (4, 407435), (5, 325948), (7, 232820), (10, 162974), (14, 116410), (20, 81487), (28, 58205), (35, 46564), (49, 33260), (70, 23282), (98, 16630), (140, 11641), (196, 8315), (245, 6652), (490, 3326), (980, 1663)]