81918041760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{56887529}}^1$

素因数の和:56887550

約数の個数: 72

約数和(自身を含む): 279545322420

約数和(自身を除く): 197627280660

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, 56887529, 113775058, 170662587, 227550116, 284437645, 341325174, 455100232, 511987761, 568875290, 682650348, 853312935, 910200464, 1023975522, 1137750580, 1365300696, 1706625870, 1820400928, 2047951044, 2275501160, 2559938805, 2730601392, 3413251740, 4095902088, 4551002320, 5119877610, 5461202784, 6826503480, 8191804176, 9102004640, 10239755220, 13653006960, 16383608352, 20479510440, 27306013920, 40959020880, 81918041760]

約数ペア:

[(1, 81918041760), (2, 40959020880), (3, 27306013920), (4, 20479510440), (5, 16383608352), (6, 13653006960), (8, 10239755220), (9, 9102004640), (10, 8191804176), (12, 6826503480), (15, 5461202784), (16, 5119877610), (18, 4551002320), (20, 4095902088), (24, 3413251740), (30, 2730601392), (32, 2559938805), (36, 2275501160), (40, 2047951044), (45, 1820400928), (48, 1706625870), (60, 1365300696), (72, 1137750580), (80, 1023975522), (90, 910200464), (96, 853312935), (120, 682650348), (144, 568875290), (160, 511987761), (180, 455100232), (240, 341325174), (288, 284437645), (360, 227550116), (480, 170662587), (720, 113775058), (1440, 56887529)]