138412960

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{123583}}^1$

素因数の和:123605

約数の個数: 48

約数和(自身を含む): 373718016

約数和(自身を除く): 235305056

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, 123583, 247166, 494332, 617915, 865081, 988664, 1235830, 1730162, 1977328, 2471660, 3460324, 3954656, 4325405, 4943320, 6920648, 8650810, 9886640, 13841296, 17301620, 19773280, 27682592, 34603240, 69206480, 138412960]

約数ペア:

[(1, 138412960), (2, 69206480), (4, 34603240), (5, 27682592), (7, 19773280), (8, 17301620), (10, 13841296), (14, 9886640), (16, 8650810), (20, 6920648), (28, 4943320), (32, 4325405), (35, 3954656), (40, 3460324), (56, 2471660), (70, 1977328), (80, 1730162), (112, 1235830), (140, 988664), (160, 865081), (224, 617915), (280, 494332), (560, 247166), (1120, 123583)]