138753440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{123887}}^1$

素因数の和:123909

約数の個数: 48

約数和(自身を含む): 374637312

約数和(自身を除く): 235883872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 123887, 247774, 495548, 619435, 867209, 991096, 1238870, 1734418, 1982192, 2477740, 3468836, 3964384, 4336045, 4955480, 6937672, 8672090, 9910960, 13875344, 17344180, 19821920, 27750688, 34688360, 69376720, 138753440]

約数ペア:

[(1, 138753440), (2, 69376720), (4, 34688360), (5, 27750688), (7, 19821920), (8, 17344180), (10, 13875344), (14, 9910960), (16, 8672090), (20, 6937672), (28, 4955480), (32, 4336045), (35, 3964384), (40, 3468836), (56, 2477740), (70, 1982192), (80, 1734418), (112, 1238870), (140, 991096), (160, 867209), (224, 619435), (280, 495548), (560, 247774), (1120, 123887)]