20642040

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1$

素因数の和:323

約数の個数: 160

約数和(自身を含む): 72658080

約数和(自身を除く): 52016040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 54, 60, 69, 72, 81, 90, 92, 108, 115, 120, 135, 138, 162, 180, 184, 207, 216, 230, 270, 276, 277, 324, 345, 360, 405, 414, 460, 540, 552, 554, 621, 648, 690, 810, 828, 831, 920, 1035, 1080, 1108, 1242, 1380, 1385, 1620, 1656, 1662, 1863, 2070, 2216, 2484, 2493, 2760, 2770, 3105, 3240, 3324, 3726, 4140, 4155, 4968, 4986, 5540, 6210, 6371, 6648, 7452, 7479, 8280, 8310, 9315, 9972, 11080, 12420, 12465, 12742, 14904, 14958, 16620, 18630, 19113, 19944, 22437, 24840, 24930, 25484, 29916, 31855, 33240, 37260, 37395, 38226, 44874, 49860, 50968, 57339, 59832, 63710, 74520, 74790, 76452, 89748, 95565, 99720, 112185, 114678, 127420, 149580, 152904, 172017, 179496, 191130, 224370, 229356, 254840, 286695, 299160, 344034, 382260, 448740, 458712, 516051, 573390, 688068, 764520, 860085, 897480, 1032102, 1146780, 1376136, 1720170, 2064204, 2293560, 2580255, 3440340, 4128408, 5160510, 6880680, 10321020, 20642040]

約数ペア:

[(1, 20642040), (2, 10321020), (3, 6880680), (4, 5160510), (5, 4128408), (6, 3440340), (8, 2580255), (9, 2293560), (10, 2064204), (12, 1720170), (15, 1376136), (18, 1146780), (20, 1032102), (23, 897480), (24, 860085), (27, 764520), (30, 688068), (36, 573390), (40, 516051), (45, 458712), (46, 448740), (54, 382260), (60, 344034), (69, 299160), (72, 286695), (81, 254840), (90, 229356), (92, 224370), (108, 191130), (115, 179496), (120, 172017), (135, 152904), (138, 149580), (162, 127420), (180, 114678), (184, 112185), (207, 99720), (216, 95565), (230, 89748), (270, 76452), (276, 74790), (277, 74520), (324, 63710), (345, 59832), (360, 57339), (405, 50968), (414, 49860), (460, 44874), (540, 38226), (552, 37395), (554, 37260), (621, 33240), (648, 31855), (690, 29916), (810, 25484), (828, 24930), (831, 24840), (920, 22437), (1035, 19944), (1080, 19113), (1108, 18630), (1242, 16620), (1380, 14958), (1385, 14904), (1620, 12742), (1656, 12465), (1662, 12420), (1863, 11080), (2070, 9972), (2216, 9315), (2484, 8310), (2493, 8280), (2760, 7479), (2770, 7452), (3105, 6648), (3240, 6371), (3324, 6210), (3726, 5540), (4140, 4986), (4155, 4968)]