28784880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{39979}}^1$

素因数の和:39998

約数の個数: 60

約数和(自身を含む): 96671640

約数和(自身を除く): 67886760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 39979, 79958, 119937, 159916, 199895, 239874, 319832, 359811, 399790, 479748, 599685, 639664, 719622, 799580, 959496, 1199370, 1439244, 1599160, 1799055, 1918992, 2398740, 2878488, 3198320, 3598110, 4797480, 5756976, 7196220, 9594960, 14392440, 28784880]

約数ペア:

[(1, 28784880), (2, 14392440), (3, 9594960), (4, 7196220), (5, 5756976), (6, 4797480), (8, 3598110), (9, 3198320), (10, 2878488), (12, 2398740), (15, 1918992), (16, 1799055), (18, 1599160), (20, 1439244), (24, 1199370), (30, 959496), (36, 799580), (40, 719622), (45, 639664), (48, 599685), (60, 479748), (72, 399790), (80, 359811), (90, 319832), (120, 239874), (144, 199895), (180, 159916), (240, 119937), (360, 79958), (720, 39979)]