20865312

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{5573}}^1$

素因数の和:5602

約数の個数: 72

約数和(自身を含む): 63911484

約数和(自身を除く): 43046172

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 5573, 11146, 16719, 22292, 33438, 44584, 50157, 66876, 72449, 89168, 100314, 133752, 144898, 178336, 200628, 217347, 267504, 289796, 401256, 434694, 535008, 579592, 652041, 802512, 869388, 1159184, 1304082, 1605024, 1738776, 2318368, 2608164, 3477552, 5216328, 6955104, 10432656, 20865312]

約数ペア:

[(1, 20865312), (2, 10432656), (3, 6955104), (4, 5216328), (6, 3477552), (8, 2608164), (9, 2318368), (12, 1738776), (13, 1605024), (16, 1304082), (18, 1159184), (24, 869388), (26, 802512), (32, 652041), (36, 579592), (39, 535008), (48, 434694), (52, 401256), (72, 289796), (78, 267504), (96, 217347), (104, 200628), (117, 178336), (144, 144898), (156, 133752), (208, 100314), (234, 89168), (288, 72449), (312, 66876), (416, 50157), (468, 44584), (624, 33438), (936, 22292), (1248, 16719), (1872, 11146), (3744, 5573)]