17929520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{317}}^1$

素因数の和:438

約数の個数: 80

約数和(自身を含む): 48264768

約数和(自身を除く): 30335248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 101, 112, 140, 202, 280, 317, 404, 505, 560, 634, 707, 808, 1010, 1268, 1414, 1585, 1616, 2020, 2219, 2536, 2828, 3170, 3535, 4040, 4438, 5072, 5656, 6340, 7070, 8080, 8876, 11095, 11312, 12680, 14140, 17752, 22190, 25360, 28280, 32017, 35504, 44380, 56560, 64034, 88760, 128068, 160085, 177520, 224119, 256136, 320170, 448238, 512272, 640340, 896476, 1120595, 1280680, 1792952, 2241190, 2561360, 3585904, 4482380, 8964760, 17929520]

約数ペア:

[(1, 17929520), (2, 8964760), (4, 4482380), (5, 3585904), (7, 2561360), (8, 2241190), (10, 1792952), (14, 1280680), (16, 1120595), (20, 896476), (28, 640340), (35, 512272), (40, 448238), (56, 320170), (70, 256136), (80, 224119), (101, 177520), (112, 160085), (140, 128068), (202, 88760), (280, 64034), (317, 56560), (404, 44380), (505, 35504), (560, 32017), (634, 28280), (707, 25360), (808, 22190), (1010, 17752), (1268, 14140), (1414, 12680), (1585, 11312), (1616, 11095), (2020, 8876), (2219, 8080), (2536, 7070), (2828, 6340), (3170, 5656), (3535, 5072), (4040, 4438)]