20379888

素因数分解:

$2^4\times 3^2\times {\mathrm{307}}^1\times {\mathrm{461}}^1$

素因数の和:782

約数の個数: 60

約数和(自身を含む): 57345288

約数和(自身を除く): 36965400

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 307, 461, 614, 921, 922, 1228, 1383, 1842, 1844, 2456, 2763, 2766, 3684, 3688, 4149, 4912, 5526, 5532, 7368, 7376, 8298, 11052, 11064, 14736, 16596, 22104, 22128, 33192, 44208, 66384, 141527, 283054, 424581, 566108, 849162, 1132216, 1273743, 1698324, 2264432, 2547486, 3396648, 5094972, 6793296, 10189944, 20379888]

約数ペア:

[(1, 20379888), (2, 10189944), (3, 6793296), (4, 5094972), (6, 3396648), (8, 2547486), (9, 2264432), (12, 1698324), (16, 1273743), (18, 1132216), (24, 849162), (36, 566108), (48, 424581), (72, 283054), (144, 141527), (307, 66384), (461, 44208), (614, 33192), (921, 22128), (922, 22104), (1228, 16596), (1383, 14736), (1842, 11064), (1844, 11052), (2456, 8298), (2763, 7376), (2766, 7368), (3684, 5532), (3688, 5526), (4149, 4912)]