20864004

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:202

約数の個数: 96

約数和(自身を含む): 58732800

約数和(自身を除く): 37868796

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 49, 74, 84, 98, 111, 137, 147, 148, 196, 222, 259, 274, 294, 343, 411, 444, 518, 548, 588, 686, 777, 822, 959, 1029, 1036, 1372, 1554, 1644, 1813, 1918, 2058, 2877, 3108, 3626, 3836, 4116, 5069, 5439, 5754, 6713, 7252, 10138, 10878, 11508, 12691, 13426, 15207, 20139, 20276, 21756, 25382, 26852, 30414, 35483, 38073, 40278, 46991, 50764, 60828, 70966, 76146, 80556, 93982, 106449, 140973, 141932, 152292, 187964, 212898, 248381, 281946, 425796, 496762, 563892, 745143, 993524, 1490286, 1738667, 2980572, 3477334, 5216001, 6954668, 10432002, 20864004]

約数ペア:

[(1, 20864004), (2, 10432002), (3, 6954668), (4, 5216001), (6, 3477334), (7, 2980572), (12, 1738667), (14, 1490286), (21, 993524), (28, 745143), (37, 563892), (42, 496762), (49, 425796), (74, 281946), (84, 248381), (98, 212898), (111, 187964), (137, 152292), (147, 141932), (148, 140973), (196, 106449), (222, 93982), (259, 80556), (274, 76146), (294, 70966), (343, 60828), (411, 50764), (444, 46991), (518, 40278), (548, 38073), (588, 35483), (686, 30414), (777, 26852), (822, 25382), (959, 21756), (1029, 20276), (1036, 20139), (1372, 15207), (1554, 13426), (1644, 12691), (1813, 11508), (1918, 10878), (2058, 10138), (2877, 7252), (3108, 6713), (3626, 5754), (3836, 5439), (4116, 5069)]