9990370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:155

約数の個数: 64

約数和(自身を含む): 20837376

約数和(自身を除く): 10847006

約数列:

[1, 2, 5, 10, 13, 26, 31, 37, 62, 65, 67, 74, 130, 134, 155, 185, 310, 335, 370, 403, 481, 670, 806, 871, 962, 1147, 1742, 2015, 2077, 2294, 2405, 2479, 4030, 4154, 4355, 4810, 4958, 5735, 8710, 10385, 11470, 12395, 14911, 20770, 24790, 27001, 29822, 32227, 54002, 64454, 74555, 76849, 135005, 149110, 153698, 161135, 270010, 322270, 384245, 768490, 999037, 1998074, 4995185, 9990370]

約数ペア:

[(1, 9990370), (2, 4995185), (5, 1998074), (10, 999037), (13, 768490), (26, 384245), (31, 322270), (37, 270010), (62, 161135), (65, 153698), (67, 149110), (74, 135005), (130, 76849), (134, 74555), (155, 64454), (185, 54002), (310, 32227), (335, 29822), (370, 27001), (403, 24790), (481, 20770), (670, 14911), (806, 12395), (871, 11470), (962, 10385), (1147, 8710), (1742, 5735), (2015, 4958), (2077, 4810), (2294, 4355), (2405, 4154), (2479, 4030)]