20947360

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{317}}^1$

素因数の和:398

約数の個数: 96

約数和(自身を含む): 57697920

約数和(自身を除く): 36750560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 59, 70, 80, 112, 118, 140, 160, 224, 236, 280, 295, 317, 413, 472, 560, 590, 634, 826, 944, 1120, 1180, 1268, 1585, 1652, 1888, 2065, 2219, 2360, 2536, 3170, 3304, 4130, 4438, 4720, 5072, 6340, 6608, 8260, 8876, 9440, 10144, 11095, 12680, 13216, 16520, 17752, 18703, 22190, 25360, 33040, 35504, 37406, 44380, 50720, 66080, 71008, 74812, 88760, 93515, 130921, 149624, 177520, 187030, 261842, 299248, 355040, 374060, 523684, 598496, 654605, 748120, 1047368, 1309210, 1496240, 2094736, 2618420, 2992480, 4189472, 5236840, 10473680, 20947360]

約数ペア:

[(1, 20947360), (2, 10473680), (4, 5236840), (5, 4189472), (7, 2992480), (8, 2618420), (10, 2094736), (14, 1496240), (16, 1309210), (20, 1047368), (28, 748120), (32, 654605), (35, 598496), (40, 523684), (56, 374060), (59, 355040), (70, 299248), (80, 261842), (112, 187030), (118, 177520), (140, 149624), (160, 130921), (224, 93515), (236, 88760), (280, 74812), (295, 71008), (317, 66080), (413, 50720), (472, 44380), (560, 37406), (590, 35504), (634, 33040), (826, 25360), (944, 22190), (1120, 18703), (1180, 17752), (1268, 16520), (1585, 13216), (1652, 12680), (1888, 11095), (2065, 10144), (2219, 9440), (2360, 8876), (2536, 8260), (3170, 6608), (3304, 6340), (4130, 5072), (4438, 4720)]