20820720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86753}}^1$

素因数の和:86769

約数の個数: 40

約数和(自身を含む): 64544976

約数和(自身を除く): 43724256

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86753, 173506, 260259, 347012, 433765, 520518, 694024, 867530, 1041036, 1301295, 1388048, 1735060, 2082072, 2602590, 3470120, 4164144, 5205180, 6940240, 10410360, 20820720]

約数ペア:

[(1, 20820720), (2, 10410360), (3, 6940240), (4, 5205180), (5, 4164144), (6, 3470120), (8, 2602590), (10, 2082072), (12, 1735060), (15, 1388048), (16, 1301295), (20, 1041036), (24, 867530), (30, 694024), (40, 520518), (48, 433765), (60, 347012), (80, 260259), (120, 173506), (240, 86753)]