261639360

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{90847}}^1$

素因数の和:90870

約数の個数: 84

約数和(自身を含む): 899940288

約数和(自身を除く): 638300928

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, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 90847, 181694, 272541, 363388, 454235, 545082, 726776, 817623, 908470, 1090164, 1362705, 1453552, 1635246, 1816940, 2180328, 2725410, 2907104, 3270492, 3633880, 4088115, 4360656, 5450820, 5814208, 6540984, 7267760, 8176230, 8721312, 10901640, 13081968, 14535520, 16352460, 17442624, 21803280, 26163936, 29071040, 32704920, 43606560, 52327872, 65409840, 87213120, 130819680, 261639360]

約数ペア:

[(1, 261639360), (2, 130819680), (3, 87213120), (4, 65409840), (5, 52327872), (6, 43606560), (8, 32704920), (9, 29071040), (10, 26163936), (12, 21803280), (15, 17442624), (16, 16352460), (18, 14535520), (20, 13081968), (24, 10901640), (30, 8721312), (32, 8176230), (36, 7267760), (40, 6540984), (45, 5814208), (48, 5450820), (60, 4360656), (64, 4088115), (72, 3633880), (80, 3270492), (90, 2907104), (96, 2725410), (120, 2180328), (144, 1816940), (160, 1635246), (180, 1453552), (192, 1362705), (240, 1090164), (288, 908470), (320, 817623), (360, 726776), (480, 545082), (576, 454235), (720, 363388), (960, 272541), (1440, 181694), (2880, 90847)]