42173020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{271}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 92123136

約数和(自身を除く): 49950116

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 251, 271, 310, 502, 542, 620, 1004, 1084, 1255, 1355, 2510, 2710, 5020, 5420, 7781, 8401, 15562, 16802, 31124, 33604, 38905, 42005, 68021, 77810, 84010, 136042, 155620, 168020, 272084, 340105, 680210, 1360420, 2108651, 4217302, 8434604, 10543255, 21086510, 42173020]

約数ペア:

[(1, 42173020), (2, 21086510), (4, 10543255), (5, 8434604), (10, 4217302), (20, 2108651), (31, 1360420), (62, 680210), (124, 340105), (155, 272084), (251, 168020), (271, 155620), (310, 136042), (502, 84010), (542, 77810), (620, 68021), (1004, 42005), (1084, 38905), (1255, 33604), (1355, 31124), (2510, 16802), (2710, 15562), (5020, 8401), (5420, 7781)]