81663360

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{42533}}^1$

素因数の和:42555

約数の個数: 64

約数和(自身を含む): 260308080

約数和(自身を除く): 178644720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 42533, 85066, 127599, 170132, 212665, 255198, 340264, 425330, 510396, 637995, 680528, 850660, 1020792, 1275990, 1361056, 1701320, 2041584, 2551980, 2722112, 3402640, 4083168, 5103960, 5444224, 6805280, 8166336, 10207920, 13610560, 16332672, 20415840, 27221120, 40831680, 81663360]

約数ペア:

[(1, 81663360), (2, 40831680), (3, 27221120), (4, 20415840), (5, 16332672), (6, 13610560), (8, 10207920), (10, 8166336), (12, 6805280), (15, 5444224), (16, 5103960), (20, 4083168), (24, 3402640), (30, 2722112), (32, 2551980), (40, 2041584), (48, 1701320), (60, 1361056), (64, 1275990), (80, 1020792), (96, 850660), (120, 680528), (128, 637995), (160, 510396), (192, 425330), (240, 340264), (320, 255198), (384, 212665), (480, 170132), (640, 127599), (960, 85066), (1920, 42533)]