20975680

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:188

約数の個数: 112

約数和(自身を含む): 55961280

約数和(自身を除く): 34985600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 59, 64, 80, 88, 101, 110, 118, 160, 176, 202, 220, 236, 295, 320, 352, 404, 440, 472, 505, 590, 649, 704, 808, 880, 944, 1010, 1111, 1180, 1298, 1616, 1760, 1888, 2020, 2222, 2360, 2596, 3232, 3245, 3520, 3776, 4040, 4444, 4720, 5192, 5555, 5959, 6464, 6490, 8080, 8888, 9440, 10384, 11110, 11918, 12980, 16160, 17776, 18880, 20768, 22220, 23836, 25960, 29795, 32320, 35552, 41536, 44440, 47672, 51920, 59590, 65549, 71104, 88880, 95344, 103840, 119180, 131098, 177760, 190688, 207680, 238360, 262196, 327745, 355520, 381376, 476720, 524392, 655490, 953440, 1048784, 1310980, 1906880, 2097568, 2621960, 4195136, 5243920, 10487840, 20975680]

約数ペア:

[(1, 20975680), (2, 10487840), (4, 5243920), (5, 4195136), (8, 2621960), (10, 2097568), (11, 1906880), (16, 1310980), (20, 1048784), (22, 953440), (32, 655490), (40, 524392), (44, 476720), (55, 381376), (59, 355520), (64, 327745), (80, 262196), (88, 238360), (101, 207680), (110, 190688), (118, 177760), (160, 131098), (176, 119180), (202, 103840), (220, 95344), (236, 88880), (295, 71104), (320, 65549), (352, 59590), (404, 51920), (440, 47672), (472, 44440), (505, 41536), (590, 35552), (649, 32320), (704, 29795), (808, 25960), (880, 23836), (944, 22220), (1010, 20768), (1111, 18880), (1180, 17776), (1298, 16160), (1616, 12980), (1760, 11918), (1888, 11110), (2020, 10384), (2222, 9440), (2360, 8888), (2596, 8080), (3232, 6490), (3245, 6464), (3520, 5959), (3776, 5555), (4040, 5192), (4444, 4720)]