12647440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12161}}^1$

素因数の和:12187

約数の個数: 40

約数和(自身を含む): 31669848

約数和(自身を除く): 19022408

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 12161, 24322, 48644, 60805, 97288, 121610, 158093, 194576, 243220, 316186, 486440, 632372, 790465, 972880, 1264744, 1580930, 2529488, 3161860, 6323720, 12647440]

約数ペア:

[(1, 12647440), (2, 6323720), (4, 3161860), (5, 2529488), (8, 1580930), (10, 1264744), (13, 972880), (16, 790465), (20, 632372), (26, 486440), (40, 316186), (52, 243220), (65, 194576), (80, 158093), (104, 121610), (130, 97288), (208, 60805), (260, 48644), (520, 24322), (1040, 12161)]