81908280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{509}}^1$

素因数の和:678

約数の個数: 128

約数和(自身を含む): 275400000

約数和(自身を除く): 193491720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 149, 180, 216, 270, 298, 360, 447, 509, 540, 596, 745, 894, 1018, 1080, 1192, 1341, 1490, 1527, 1788, 2036, 2235, 2545, 2682, 2980, 3054, 3576, 4023, 4072, 4470, 4581, 5090, 5364, 5960, 6108, 6705, 7635, 8046, 8940, 9162, 10180, 10728, 12216, 13410, 13743, 15270, 16092, 17880, 18324, 20115, 20360, 22905, 26820, 27486, 30540, 32184, 36648, 40230, 45810, 53640, 54972, 61080, 68715, 75841, 80460, 91620, 109944, 137430, 151682, 160920, 183240, 227523, 274860, 303364, 379205, 455046, 549720, 606728, 682569, 758410, 910092, 1137615, 1365138, 1516820, 1820184, 2047707, 2275230, 2730276, 3033640, 3412845, 4095414, 4550460, 5460552, 6825690, 8190828, 9100920, 10238535, 13651380, 16381656, 20477070, 27302760, 40954140, 81908280]

約数ペア:

[(1, 81908280), (2, 40954140), (3, 27302760), (4, 20477070), (5, 16381656), (6, 13651380), (8, 10238535), (9, 9100920), (10, 8190828), (12, 6825690), (15, 5460552), (18, 4550460), (20, 4095414), (24, 3412845), (27, 3033640), (30, 2730276), (36, 2275230), (40, 2047707), (45, 1820184), (54, 1516820), (60, 1365138), (72, 1137615), (90, 910092), (108, 758410), (120, 682569), (135, 606728), (149, 549720), (180, 455046), (216, 379205), (270, 303364), (298, 274860), (360, 227523), (447, 183240), (509, 160920), (540, 151682), (596, 137430), (745, 109944), (894, 91620), (1018, 80460), (1080, 75841), (1192, 68715), (1341, 61080), (1490, 54972), (1527, 53640), (1788, 45810), (2036, 40230), (2235, 36648), (2545, 32184), (2682, 30540), (2980, 27486), (3054, 26820), (3576, 22905), (4023, 20360), (4072, 20115), (4470, 18324), (4581, 17880), (5090, 16092), (5364, 15270), (5960, 13743), (6108, 13410), (6705, 12216), (7635, 10728), (8046, 10180), (8940, 9162)]