19388816

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:156

約数の個数: 80

約数和(自身を含む): 42854400

約数和(自身を除く): 23465584

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 47, 59, 76, 92, 94, 118, 152, 184, 188, 236, 304, 368, 376, 437, 472, 752, 874, 893, 944, 1081, 1121, 1357, 1748, 1786, 2162, 2242, 2714, 2773, 3496, 3572, 4324, 4484, 5428, 5546, 6992, 7144, 8648, 8968, 10856, 11092, 14288, 17296, 17936, 20539, 21712, 22184, 25783, 41078, 44368, 51566, 52687, 63779, 82156, 103132, 105374, 127558, 164312, 206264, 210748, 255116, 328624, 412528, 421496, 510232, 842992, 1020464, 1211801, 2423602, 4847204, 9694408, 19388816]

約数ペア:

[(1, 19388816), (2, 9694408), (4, 4847204), (8, 2423602), (16, 1211801), (19, 1020464), (23, 842992), (38, 510232), (46, 421496), (47, 412528), (59, 328624), (76, 255116), (92, 210748), (94, 206264), (118, 164312), (152, 127558), (184, 105374), (188, 103132), (236, 82156), (304, 63779), (368, 52687), (376, 51566), (437, 44368), (472, 41078), (752, 25783), (874, 22184), (893, 21712), (944, 20539), (1081, 17936), (1121, 17296), (1357, 14288), (1748, 11092), (1786, 10856), (2162, 8968), (2242, 8648), (2714, 7144), (2773, 6992), (3496, 5546), (3572, 5428), (4324, 4484)]