20286756

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{223}}^1$

素因数の和:278

約数の個数: 108

約数和(自身を含む): 62130432

約数和(自身を除く): 41843676

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 57, 63, 76, 84, 114, 126, 133, 171, 223, 228, 252, 266, 342, 361, 399, 446, 532, 669, 684, 722, 798, 892, 1083, 1197, 1338, 1444, 1561, 1596, 2007, 2166, 2394, 2527, 2676, 3122, 3249, 4014, 4237, 4332, 4683, 4788, 5054, 6244, 6498, 7581, 8028, 8474, 9366, 10108, 12711, 12996, 14049, 15162, 16948, 18732, 22743, 25422, 28098, 29659, 30324, 38133, 45486, 50844, 56196, 59318, 76266, 80503, 88977, 90972, 118636, 152532, 161006, 177954, 241509, 266931, 322012, 355908, 483018, 533862, 563521, 724527, 966036, 1067724, 1127042, 1449054, 1690563, 2254084, 2898108, 3381126, 5071689, 6762252, 10143378, 20286756]

約数ペア:

[(1, 20286756), (2, 10143378), (3, 6762252), (4, 5071689), (6, 3381126), (7, 2898108), (9, 2254084), (12, 1690563), (14, 1449054), (18, 1127042), (19, 1067724), (21, 966036), (28, 724527), (36, 563521), (38, 533862), (42, 483018), (57, 355908), (63, 322012), (76, 266931), (84, 241509), (114, 177954), (126, 161006), (133, 152532), (171, 118636), (223, 90972), (228, 88977), (252, 80503), (266, 76266), (342, 59318), (361, 56196), (399, 50844), (446, 45486), (532, 38133), (669, 30324), (684, 29659), (722, 28098), (798, 25422), (892, 22743), (1083, 18732), (1197, 16948), (1338, 15162), (1444, 14049), (1561, 12996), (1596, 12711), (2007, 10108), (2166, 9366), (2394, 8474), (2527, 8028), (2676, 7581), (3122, 6498), (3249, 6244), (4014, 5054), (4237, 4788), (4332, 4683)]