81549480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{18367}}^1$

素因数の和:18418

約数の個数: 64

約数和(自身を含む): 251274240

約数和(自身を除く): 169724760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 111, 120, 148, 185, 222, 296, 370, 444, 555, 740, 888, 1110, 1480, 2220, 4440, 18367, 36734, 55101, 73468, 91835, 110202, 146936, 183670, 220404, 275505, 367340, 440808, 551010, 679579, 734680, 1102020, 1359158, 2038737, 2204040, 2718316, 3397895, 4077474, 5436632, 6795790, 8154948, 10193685, 13591580, 16309896, 20387370, 27183160, 40774740, 81549480]

約数ペア:

[(1, 81549480), (2, 40774740), (3, 27183160), (4, 20387370), (5, 16309896), (6, 13591580), (8, 10193685), (10, 8154948), (12, 6795790), (15, 5436632), (20, 4077474), (24, 3397895), (30, 2718316), (37, 2204040), (40, 2038737), (60, 1359158), (74, 1102020), (111, 734680), (120, 679579), (148, 551010), (185, 440808), (222, 367340), (296, 275505), (370, 220404), (444, 183670), (555, 146936), (740, 110202), (888, 91835), (1110, 73468), (1480, 55101), (2220, 36734), (4440, 18367)]