20376486

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^2$

素因数の和:158

約数の個数: 72

約数和(自身を含む): 50022336

約数和(自身を除く): 29645850

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 53, 62, 78, 93, 106, 117, 159, 186, 234, 279, 318, 403, 477, 558, 689, 806, 954, 1209, 1378, 1643, 2067, 2418, 2809, 3286, 3627, 4134, 4929, 5618, 6201, 7254, 8427, 9858, 12402, 14787, 16854, 21359, 25281, 29574, 36517, 42718, 50562, 64077, 73034, 87079, 109551, 128154, 174158, 192231, 219102, 261237, 328653, 384462, 522474, 657306, 783711, 1132027, 1567422, 2264054, 3396081, 6792162, 10188243, 20376486]

約数ペア:

[(1, 20376486), (2, 10188243), (3, 6792162), (6, 3396081), (9, 2264054), (13, 1567422), (18, 1132027), (26, 783711), (31, 657306), (39, 522474), (53, 384462), (62, 328653), (78, 261237), (93, 219102), (106, 192231), (117, 174158), (159, 128154), (186, 109551), (234, 87079), (279, 73034), (318, 64077), (403, 50562), (477, 42718), (558, 36517), (689, 29574), (806, 25281), (954, 21359), (1209, 16854), (1378, 14787), (1643, 12402), (2067, 9858), (2418, 8427), (2809, 7254), (3286, 6201), (3627, 5618), (4134, 4929)]