168443380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{171881}}^1$

素因数の和:171904

約数の個数: 36

約数和(自身を含む): 411485508

約数和(自身を除く): 243042128

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 171881, 343762, 687524, 859405, 1203167, 1718810, 2406334, 3437620, 4812668, 6015835, 8422169, 12031670, 16844338, 24063340, 33688676, 42110845, 84221690, 168443380]

約数ペア:

[(1, 168443380), (2, 84221690), (4, 42110845), (5, 33688676), (7, 24063340), (10, 16844338), (14, 12031670), (20, 8422169), (28, 6015835), (35, 4812668), (49, 3437620), (70, 2406334), (98, 1718810), (140, 1203167), (196, 859405), (245, 687524), (490, 343762), (980, 171881)]