81663840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{56711}}^1$

素因数の和:56732

約数の個数: 72

約数和(自身を含む): 278682768

約数和(自身を除く): 197018928

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 56711, 113422, 170133, 226844, 283555, 340266, 453688, 510399, 567110, 680532, 850665, 907376, 1020798, 1134220, 1361064, 1701330, 1814752, 2041596, 2268440, 2551995, 2722128, 3402660, 4083192, 4536880, 5103990, 5444256, 6805320, 8166384, 9073760, 10207980, 13610640, 16332768, 20415960, 27221280, 40831920, 81663840]

約数ペア:

[(1, 81663840), (2, 40831920), (3, 27221280), (4, 20415960), (5, 16332768), (6, 13610640), (8, 10207980), (9, 9073760), (10, 8166384), (12, 6805320), (15, 5444256), (16, 5103990), (18, 4536880), (20, 4083192), (24, 3402660), (30, 2722128), (32, 2551995), (36, 2268440), (40, 2041596), (45, 1814752), (48, 1701330), (60, 1361064), (72, 1134220), (80, 1020798), (90, 907376), (96, 850665), (120, 680532), (144, 567110), (160, 510399), (180, 453688), (240, 340266), (288, 283555), (360, 226844), (480, 170133), (720, 113422), (1440, 56711)]