81761760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{56779}}^1$

素因数の和:56800

約数の個数: 72

約数和(自身を含む): 279016920

約数和(自身を除く): 197255160

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, 56779, 113558, 170337, 227116, 283895, 340674, 454232, 511011, 567790, 681348, 851685, 908464, 1022022, 1135580, 1362696, 1703370, 1816928, 2044044, 2271160, 2555055, 2725392, 3406740, 4088088, 4542320, 5110110, 5450784, 6813480, 8176176, 9084640, 10220220, 13626960, 16352352, 20440440, 27253920, 40880880, 81761760]

約数ペア:

[(1, 81761760), (2, 40880880), (3, 27253920), (4, 20440440), (5, 16352352), (6, 13626960), (8, 10220220), (9, 9084640), (10, 8176176), (12, 6813480), (15, 5450784), (16, 5110110), (18, 4542320), (20, 4088088), (24, 3406740), (30, 2725392), (32, 2555055), (36, 2271160), (40, 2044044), (45, 1816928), (48, 1703370), (60, 1362696), (72, 1135580), (80, 1022022), (90, 908464), (96, 851685), (120, 681348), (144, 567790), (160, 511011), (180, 454232), (240, 340674), (288, 283895), (360, 227116), (480, 170337), (720, 113558), (1440, 56779)]