255978720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{177763}}^1$

素因数の和:177784

約数の個数: 72

約数和(自身を含む): 873532296

約数和(自身を除く): 617553576

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, 177763, 355526, 533289, 711052, 888815, 1066578, 1422104, 1599867, 1777630, 2133156, 2666445, 2844208, 3199734, 3555260, 4266312, 5332890, 5688416, 6399468, 7110520, 7999335, 8532624, 10665780, 12798936, 14221040, 15998670, 17065248, 21331560, 25597872, 28442080, 31997340, 42663120, 51195744, 63994680, 85326240, 127989360, 255978720]

約数ペア:

[(1, 255978720), (2, 127989360), (3, 85326240), (4, 63994680), (5, 51195744), (6, 42663120), (8, 31997340), (9, 28442080), (10, 25597872), (12, 21331560), (15, 17065248), (16, 15998670), (18, 14221040), (20, 12798936), (24, 10665780), (30, 8532624), (32, 7999335), (36, 7110520), (40, 6399468), (45, 5688416), (48, 5332890), (60, 4266312), (72, 3555260), (80, 3199734), (90, 2844208), (96, 2666445), (120, 2133156), (144, 1777630), (160, 1599867), (180, 1422104), (240, 1066578), (288, 888815), (360, 711052), (480, 533289), (720, 355526), (1440, 177763)]