20497776

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{307}}^1$

素因数の和:438

約数の個数: 80

約数和(自身を含む): 57746304

約数和(自身を除く): 37248528

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 107, 156, 208, 214, 307, 312, 321, 428, 614, 624, 642, 856, 921, 1228, 1284, 1391, 1712, 1842, 2456, 2568, 2782, 3684, 3991, 4173, 4912, 5136, 5564, 7368, 7982, 8346, 11128, 11973, 14736, 15964, 16692, 22256, 23946, 31928, 32849, 33384, 47892, 63856, 65698, 66768, 95784, 98547, 131396, 191568, 197094, 262792, 394188, 427037, 525584, 788376, 854074, 1281111, 1576752, 1708148, 2562222, 3416296, 5124444, 6832592, 10248888, 20497776]

約数ペア:

[(1, 20497776), (2, 10248888), (3, 6832592), (4, 5124444), (6, 3416296), (8, 2562222), (12, 1708148), (13, 1576752), (16, 1281111), (24, 854074), (26, 788376), (39, 525584), (48, 427037), (52, 394188), (78, 262792), (104, 197094), (107, 191568), (156, 131396), (208, 98547), (214, 95784), (307, 66768), (312, 65698), (321, 63856), (428, 47892), (614, 33384), (624, 32849), (642, 31928), (856, 23946), (921, 22256), (1228, 16692), (1284, 15964), (1391, 14736), (1712, 11973), (1842, 11128), (2456, 8346), (2568, 7982), (2782, 7368), (3684, 5564), (3991, 5136), (4173, 4912)]