138809320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:243

約数の個数: 128

約数和(自身を含む): 354816000

約数和(自身を除く): 216006680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 79, 104, 109, 124, 130, 155, 158, 218, 248, 260, 310, 316, 395, 403, 436, 520, 545, 620, 632, 790, 806, 872, 1027, 1090, 1240, 1417, 1580, 1612, 2015, 2054, 2180, 2449, 2834, 3160, 3224, 3379, 4030, 4108, 4360, 4898, 5135, 5668, 6758, 7085, 8060, 8216, 8611, 9796, 10270, 11336, 12245, 13516, 14170, 16120, 16895, 17222, 19592, 20540, 24490, 27032, 28340, 31837, 33790, 34444, 41080, 43055, 43927, 48980, 56680, 63674, 67580, 68888, 86110, 87854, 97960, 111943, 127348, 135160, 159185, 172220, 175708, 219635, 223886, 254696, 266941, 318370, 344440, 351416, 439270, 447772, 533882, 559715, 636740, 878540, 895544, 1067764, 1119430, 1273480, 1334705, 1757080, 2135528, 2238860, 2669410, 3470233, 4477720, 5338820, 6940466, 10677640, 13880932, 17351165, 27761864, 34702330, 69404660, 138809320]

約数ペア:

[(1, 138809320), (2, 69404660), (4, 34702330), (5, 27761864), (8, 17351165), (10, 13880932), (13, 10677640), (20, 6940466), (26, 5338820), (31, 4477720), (40, 3470233), (52, 2669410), (62, 2238860), (65, 2135528), (79, 1757080), (104, 1334705), (109, 1273480), (124, 1119430), (130, 1067764), (155, 895544), (158, 878540), (218, 636740), (248, 559715), (260, 533882), (310, 447772), (316, 439270), (395, 351416), (403, 344440), (436, 318370), (520, 266941), (545, 254696), (620, 223886), (632, 219635), (790, 175708), (806, 172220), (872, 159185), (1027, 135160), (1090, 127348), (1240, 111943), (1417, 97960), (1580, 87854), (1612, 86110), (2015, 68888), (2054, 67580), (2180, 63674), (2449, 56680), (2834, 48980), (3160, 43927), (3224, 43055), (3379, 41080), (4030, 34444), (4108, 33790), (4360, 31837), (4898, 28340), (5135, 27032), (5668, 24490), (6758, 20540), (7085, 19592), (8060, 17222), (8216, 16895), (8611, 16120), (9796, 14170), (10270, 13516), (11336, 12245)]