17969920

素因数分解:

$2^8\times 5^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 43782480

約数和(自身を除く): 25812560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 139, 160, 202, 256, 278, 320, 404, 505, 556, 640, 695, 808, 1010, 1112, 1280, 1390, 1616, 2020, 2224, 2780, 3232, 4040, 4448, 5560, 6464, 8080, 8896, 11120, 12928, 14039, 16160, 17792, 22240, 25856, 28078, 32320, 35584, 44480, 56156, 64640, 70195, 88960, 112312, 129280, 140390, 177920, 224624, 280780, 449248, 561560, 898496, 1123120, 1796992, 2246240, 3593984, 4492480, 8984960, 17969920]

約数ペア:

[(1, 17969920), (2, 8984960), (4, 4492480), (5, 3593984), (8, 2246240), (10, 1796992), (16, 1123120), (20, 898496), (32, 561560), (40, 449248), (64, 280780), (80, 224624), (101, 177920), (128, 140390), (139, 129280), (160, 112312), (202, 88960), (256, 70195), (278, 64640), (320, 56156), (404, 44480), (505, 35584), (556, 32320), (640, 28078), (695, 25856), (808, 22240), (1010, 17792), (1112, 16160), (1280, 14039), (1390, 12928), (1616, 11120), (2020, 8896), (2224, 8080), (2780, 6464), (3232, 5560), (4040, 4448)]