16242940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{641}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 39259584

約数和(自身を除く): 23016644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 181, 362, 641, 724, 905, 1267, 1282, 1810, 2534, 2564, 3205, 3620, 4487, 5068, 6335, 6410, 8974, 12670, 12820, 17948, 22435, 25340, 44870, 89740, 116021, 232042, 464084, 580105, 812147, 1160210, 1624294, 2320420, 3248588, 4060735, 8121470, 16242940]

約数ペア:

[(1, 16242940), (2, 8121470), (4, 4060735), (5, 3248588), (7, 2320420), (10, 1624294), (14, 1160210), (20, 812147), (28, 580105), (35, 464084), (70, 232042), (140, 116021), (181, 89740), (362, 44870), (641, 25340), (724, 22435), (905, 17948), (1267, 12820), (1282, 12670), (1810, 8974), (2534, 6410), (2564, 6335), (3205, 5068), (3620, 4487)]