77969840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:191

約数の個数: 120

約数和(自身を含む): 201504960

約数和(自身を除く): 123535120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 73, 79, 80, 104, 130, 146, 158, 169, 208, 260, 292, 316, 338, 365, 395, 520, 584, 632, 676, 730, 790, 845, 949, 1027, 1040, 1168, 1264, 1352, 1460, 1580, 1690, 1898, 2054, 2704, 2920, 3160, 3380, 3796, 4108, 4745, 5135, 5767, 5840, 6320, 6760, 7592, 8216, 9490, 10270, 11534, 12337, 13351, 13520, 15184, 16432, 18980, 20540, 23068, 24674, 26702, 28835, 37960, 41080, 46136, 49348, 53404, 57670, 61685, 66755, 74971, 75920, 82160, 92272, 98696, 106808, 115340, 123370, 133510, 149942, 197392, 213616, 230680, 246740, 267020, 299884, 374855, 461360, 493480, 534040, 599768, 749710, 974623, 986960, 1068080, 1199536, 1499420, 1949246, 2998840, 3898492, 4873115, 5997680, 7796984, 9746230, 15593968, 19492460, 38984920, 77969840]

約数ペア:

[(1, 77969840), (2, 38984920), (4, 19492460), (5, 15593968), (8, 9746230), (10, 7796984), (13, 5997680), (16, 4873115), (20, 3898492), (26, 2998840), (40, 1949246), (52, 1499420), (65, 1199536), (73, 1068080), (79, 986960), (80, 974623), (104, 749710), (130, 599768), (146, 534040), (158, 493480), (169, 461360), (208, 374855), (260, 299884), (292, 267020), (316, 246740), (338, 230680), (365, 213616), (395, 197392), (520, 149942), (584, 133510), (632, 123370), (676, 115340), (730, 106808), (790, 98696), (845, 92272), (949, 82160), (1027, 75920), (1040, 74971), (1168, 66755), (1264, 61685), (1352, 57670), (1460, 53404), (1580, 49348), (1690, 46136), (1898, 41080), (2054, 37960), (2704, 28835), (2920, 26702), (3160, 24674), (3380, 23068), (3796, 20540), (4108, 18980), (4745, 16432), (5135, 15184), (5767, 13520), (5840, 13351), (6320, 12337), (6760, 11534), (7592, 10270), (8216, 9490)]