42140420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1663}}^1$

素因数の和:1860

約数の個数: 48

約数和(自身を含む): 101756928

約数和(自身を除く): 59616508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 181, 362, 724, 905, 1267, 1663, 1810, 2534, 3326, 3620, 5068, 6335, 6652, 8315, 11641, 12670, 16630, 23282, 25340, 33260, 46564, 58205, 116410, 232820, 301003, 602006, 1204012, 1505015, 2107021, 3010030, 4214042, 6020060, 8428084, 10535105, 21070210, 42140420]

約数ペア:

[(1, 42140420), (2, 21070210), (4, 10535105), (5, 8428084), (7, 6020060), (10, 4214042), (14, 3010030), (20, 2107021), (28, 1505015), (35, 1204012), (70, 602006), (140, 301003), (181, 232820), (362, 116410), (724, 58205), (905, 46564), (1267, 33260), (1663, 25340), (1810, 23282), (2534, 16630), (3326, 12670), (3620, 11641), (5068, 8315), (6335, 6652)]