39961480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:159

約数の個数: 128

約数和(自身を含む): 104186880

約数和(自身を除く): 64225400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 37, 40, 52, 62, 65, 67, 74, 104, 124, 130, 134, 148, 155, 185, 248, 260, 268, 296, 310, 335, 370, 403, 481, 520, 536, 620, 670, 740, 806, 871, 962, 1147, 1240, 1340, 1480, 1612, 1742, 1924, 2015, 2077, 2294, 2405, 2479, 2680, 3224, 3484, 3848, 4030, 4154, 4355, 4588, 4810, 4958, 5735, 6968, 8060, 8308, 8710, 9176, 9620, 9916, 10385, 11470, 12395, 14911, 16120, 16616, 17420, 19240, 19832, 20770, 22940, 24790, 27001, 29822, 32227, 34840, 41540, 45880, 49580, 54002, 59644, 64454, 74555, 76849, 83080, 99160, 108004, 119288, 128908, 135005, 149110, 153698, 161135, 216008, 257816, 270010, 298220, 307396, 322270, 384245, 540020, 596440, 614792, 644540, 768490, 999037, 1080040, 1289080, 1536980, 1998074, 3073960, 3996148, 4995185, 7992296, 9990370, 19980740, 39961480]

約数ペア:

[(1, 39961480), (2, 19980740), (4, 9990370), (5, 7992296), (8, 4995185), (10, 3996148), (13, 3073960), (20, 1998074), (26, 1536980), (31, 1289080), (37, 1080040), (40, 999037), (52, 768490), (62, 644540), (65, 614792), (67, 596440), (74, 540020), (104, 384245), (124, 322270), (130, 307396), (134, 298220), (148, 270010), (155, 257816), (185, 216008), (248, 161135), (260, 153698), (268, 149110), (296, 135005), (310, 128908), (335, 119288), (370, 108004), (403, 99160), (481, 83080), (520, 76849), (536, 74555), (620, 64454), (670, 59644), (740, 54002), (806, 49580), (871, 45880), (962, 41540), (1147, 34840), (1240, 32227), (1340, 29822), (1480, 27001), (1612, 24790), (1742, 22940), (1924, 20770), (2015, 19832), (2077, 19240), (2294, 17420), (2405, 16616), (2479, 16120), (2680, 14911), (3224, 12395), (3484, 11470), (3848, 10385), (4030, 9916), (4154, 9620), (4355, 9176), (4588, 8710), (4810, 8308), (4958, 8060), (5735, 6968)]