28522720

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2003}}^1$

素因数の和:2107

約数の個数: 48

約数和(自身を含む): 68176080

約数和(自身を除く): 39653360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2003, 2848, 3560, 4006, 7120, 8012, 10015, 14240, 16024, 20030, 32048, 40060, 64096, 80120, 160240, 178267, 320480, 356534, 713068, 891335, 1426136, 1782670, 2852272, 3565340, 5704544, 7130680, 14261360, 28522720]

約数ペア:

[(1, 28522720), (2, 14261360), (4, 7130680), (5, 5704544), (8, 3565340), (10, 2852272), (16, 1782670), (20, 1426136), (32, 891335), (40, 713068), (80, 356534), (89, 320480), (160, 178267), (178, 160240), (356, 80120), (445, 64096), (712, 40060), (890, 32048), (1424, 20030), (1780, 16024), (2003, 14240), (2848, 10015), (3560, 8012), (4006, 7120)]