1331408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:231

約数の個数: 40

約数和(自身を含む): 2869608

約数和(自身を除く): 1538200

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 74, 104, 148, 173, 208, 296, 346, 481, 592, 692, 962, 1384, 1924, 2249, 2768, 3848, 4498, 6401, 7696, 8996, 12802, 17992, 25604, 35984, 51208, 83213, 102416, 166426, 332852, 665704, 1331408]

約数ペア:

[(1, 1331408), (2, 665704), (4, 332852), (8, 166426), (13, 102416), (16, 83213), (26, 51208), (37, 35984), (52, 25604), (74, 17992), (104, 12802), (148, 8996), (173, 7696), (208, 6401), (296, 4498), (346, 3848), (481, 2768), (592, 2249), (692, 1924), (962, 1384)]