8890720

素因数分解:

$2^5\times 5^1\times {\mathrm{181}}^1\times {\mathrm{307}}^1$

素因数の和:503

約数の個数: 48

約数和(自身を含む): 21189168

約数和(自身を除く): 12298448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 181, 307, 362, 614, 724, 905, 1228, 1448, 1535, 1810, 2456, 2896, 3070, 3620, 4912, 5792, 6140, 7240, 9824, 12280, 14480, 24560, 28960, 49120, 55567, 111134, 222268, 277835, 444536, 555670, 889072, 1111340, 1778144, 2222680, 4445360, 8890720]

約数ペア:

[(1, 8890720), (2, 4445360), (4, 2222680), (5, 1778144), (8, 1111340), (10, 889072), (16, 555670), (20, 444536), (32, 277835), (40, 222268), (80, 111134), (160, 55567), (181, 49120), (307, 28960), (362, 24560), (614, 14480), (724, 12280), (905, 9824), (1228, 7240), (1448, 6140), (1535, 5792), (1810, 4912), (2456, 3620), (2896, 3070)]