20808544

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1319}}^1$

素因数の和:1375

約数の個数: 48

約数和(自身を含む): 44906400

約数和(自身を除く): 24097856

約数列:

[1, 2, 4, 8, 16, 17, 29, 32, 34, 58, 68, 116, 136, 232, 272, 464, 493, 544, 928, 986, 1319, 1972, 2638, 3944, 5276, 7888, 10552, 15776, 21104, 22423, 38251, 42208, 44846, 76502, 89692, 153004, 179384, 306008, 358768, 612016, 650267, 717536, 1224032, 1300534, 2601068, 5202136, 10404272, 20808544]

約数ペア:

[(1, 20808544), (2, 10404272), (4, 5202136), (8, 2601068), (16, 1300534), (17, 1224032), (29, 717536), (32, 650267), (34, 612016), (58, 358768), (68, 306008), (116, 179384), (136, 153004), (232, 89692), (272, 76502), (464, 44846), (493, 42208), (544, 38251), (928, 22423), (986, 21104), (1319, 15776), (1972, 10552), (2638, 7888), (3944, 5276)]