81675840

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{571}}^1$

素因数の和:740

約数の個数: 112

約数和(自身を含む): 261518400

約数和(自身を除く): 179842560

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, 149, 160, 192, 240, 298, 320, 447, 480, 571, 596, 745, 894, 960, 1142, 1192, 1490, 1713, 1788, 2235, 2284, 2384, 2855, 2980, 3426, 3576, 4470, 4568, 4768, 5710, 5960, 6852, 7152, 8565, 8940, 9136, 9536, 11420, 11920, 13704, 14304, 17130, 17880, 18272, 22840, 23840, 27408, 28608, 34260, 35760, 36544, 45680, 47680, 54816, 68520, 71520, 85079, 91360, 109632, 137040, 143040, 170158, 182720, 255237, 274080, 340316, 425395, 510474, 548160, 680632, 850790, 1020948, 1276185, 1361264, 1701580, 2041896, 2552370, 2722528, 3403160, 4083792, 5104740, 5445056, 6806320, 8167584, 10209480, 13612640, 16335168, 20418960, 27225280, 40837920, 81675840]

約数ペア:

[(1, 81675840), (2, 40837920), (3, 27225280), (4, 20418960), (5, 16335168), (6, 13612640), (8, 10209480), (10, 8167584), (12, 6806320), (15, 5445056), (16, 5104740), (20, 4083792), (24, 3403160), (30, 2722528), (32, 2552370), (40, 2041896), (48, 1701580), (60, 1361264), (64, 1276185), (80, 1020948), (96, 850790), (120, 680632), (149, 548160), (160, 510474), (192, 425395), (240, 340316), (298, 274080), (320, 255237), (447, 182720), (480, 170158), (571, 143040), (596, 137040), (745, 109632), (894, 91360), (960, 85079), (1142, 71520), (1192, 68520), (1490, 54816), (1713, 47680), (1788, 45680), (2235, 36544), (2284, 35760), (2384, 34260), (2855, 28608), (2980, 27408), (3426, 23840), (3576, 22840), (4470, 18272), (4568, 17880), (4768, 17130), (5710, 14304), (5960, 13704), (6852, 11920), (7152, 11420), (8565, 9536), (8940, 9136)]