138877620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{330661}}^1$

素因数の和:330680

約数の個数: 48

約数和(自身を含む): 444409728

約数和(自身を除く): 305532108

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 330661, 661322, 991983, 1322644, 1653305, 1983966, 2314627, 3306610, 3967932, 4629254, 4959915, 6613220, 6943881, 9258508, 9919830, 11573135, 13887762, 19839660, 23146270, 27775524, 34719405, 46292540, 69438810, 138877620]

約数ペア:

[(1, 138877620), (2, 69438810), (3, 46292540), (4, 34719405), (5, 27775524), (6, 23146270), (7, 19839660), (10, 13887762), (12, 11573135), (14, 9919830), (15, 9258508), (20, 6943881), (21, 6613220), (28, 4959915), (30, 4629254), (35, 3967932), (42, 3306610), (60, 2314627), (70, 1983966), (84, 1653305), (105, 1322644), (140, 991983), (210, 661322), (420, 330661)]