81786120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{509}}^1$

素因数の和:639

約数の個数: 128

約数和(自身を含む): 267321600

約数和(自身を除く): 185535480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 103, 104, 120, 130, 156, 195, 206, 260, 309, 312, 390, 412, 509, 515, 520, 618, 780, 824, 1018, 1030, 1236, 1339, 1527, 1545, 1560, 2036, 2060, 2472, 2545, 2678, 3054, 3090, 4017, 4072, 4120, 5090, 5356, 6108, 6180, 6617, 6695, 7635, 8034, 10180, 10712, 12216, 12360, 13234, 13390, 15270, 16068, 19851, 20085, 20360, 26468, 26780, 30540, 32136, 33085, 39702, 40170, 52427, 52936, 53560, 61080, 66170, 79404, 80340, 99255, 104854, 132340, 157281, 158808, 160680, 198510, 209708, 262135, 264680, 314562, 397020, 419416, 524270, 629124, 681551, 786405, 794040, 1048540, 1258248, 1363102, 1572810, 2044653, 2097080, 2726204, 3145620, 3407755, 4089306, 5452408, 6291240, 6815510, 8178612, 10223265, 13631020, 16357224, 20446530, 27262040, 40893060, 81786120]

約数ペア:

[(1, 81786120), (2, 40893060), (3, 27262040), (4, 20446530), (5, 16357224), (6, 13631020), (8, 10223265), (10, 8178612), (12, 6815510), (13, 6291240), (15, 5452408), (20, 4089306), (24, 3407755), (26, 3145620), (30, 2726204), (39, 2097080), (40, 2044653), (52, 1572810), (60, 1363102), (65, 1258248), (78, 1048540), (103, 794040), (104, 786405), (120, 681551), (130, 629124), (156, 524270), (195, 419416), (206, 397020), (260, 314562), (309, 264680), (312, 262135), (390, 209708), (412, 198510), (509, 160680), (515, 158808), (520, 157281), (618, 132340), (780, 104854), (824, 99255), (1018, 80340), (1030, 79404), (1236, 66170), (1339, 61080), (1527, 53560), (1545, 52936), (1560, 52427), (2036, 40170), (2060, 39702), (2472, 33085), (2545, 32136), (2678, 30540), (3054, 26780), (3090, 26468), (4017, 20360), (4072, 20085), (4120, 19851), (5090, 16068), (5356, 15270), (6108, 13390), (6180, 13234), (6617, 12360), (6695, 12216), (7635, 10712), (8034, 10180)]