138679520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{123821}}^1$

素因数の和:123843

約数の個数: 48

約数和(自身を含む): 374437728

約数和(自身を除く): 235758208

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, 123821, 247642, 495284, 619105, 866747, 990568, 1238210, 1733494, 1981136, 2476420, 3466988, 3962272, 4333735, 4952840, 6933976, 8667470, 9905680, 13867952, 17334940, 19811360, 27735904, 34669880, 69339760, 138679520]

約数ペア:

[(1, 138679520), (2, 69339760), (4, 34669880), (5, 27735904), (7, 19811360), (8, 17334940), (10, 13867952), (14, 9905680), (16, 8667470), (20, 6933976), (28, 4952840), (32, 4333735), (35, 3962272), (40, 3466988), (56, 2476420), (70, 1981136), (80, 1733494), (112, 1238210), (140, 990568), (160, 866747), (224, 619105), (280, 495284), (560, 247642), (1120, 123821)]