21956640

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{307}}^1$

素因数の和:474

約数の個数: 96

約数和(自身を含む): 69854400

約数和(自身を除く): 47897760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 149, 160, 240, 298, 307, 447, 480, 596, 614, 745, 894, 921, 1192, 1228, 1490, 1535, 1788, 1842, 2235, 2384, 2456, 2980, 3070, 3576, 3684, 4470, 4605, 4768, 4912, 5960, 6140, 7152, 7368, 8940, 9210, 9824, 11920, 12280, 14304, 14736, 17880, 18420, 23840, 24560, 29472, 35760, 36840, 45743, 49120, 71520, 73680, 91486, 137229, 147360, 182972, 228715, 274458, 365944, 457430, 548916, 686145, 731888, 914860, 1097832, 1372290, 1463776, 1829720, 2195664, 2744580, 3659440, 4391328, 5489160, 7318880, 10978320, 21956640]

約数ペア:

[(1, 21956640), (2, 10978320), (3, 7318880), (4, 5489160), (5, 4391328), (6, 3659440), (8, 2744580), (10, 2195664), (12, 1829720), (15, 1463776), (16, 1372290), (20, 1097832), (24, 914860), (30, 731888), (32, 686145), (40, 548916), (48, 457430), (60, 365944), (80, 274458), (96, 228715), (120, 182972), (149, 147360), (160, 137229), (240, 91486), (298, 73680), (307, 71520), (447, 49120), (480, 45743), (596, 36840), (614, 35760), (745, 29472), (894, 24560), (921, 23840), (1192, 18420), (1228, 17880), (1490, 14736), (1535, 14304), (1788, 12280), (1842, 11920), (2235, 9824), (2384, 9210), (2456, 8940), (2980, 7368), (3070, 7152), (3576, 6140), (3684, 5960), (4470, 4912), (4605, 4768)]