320140120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{4733}}^1$

素因数の和:4852

約数の個数: 64

約数和(自身を含む): 766908000

約数和(自身を除く): 446767880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 356, 380, 445, 712, 760, 890, 1691, 1780, 3382, 3560, 4733, 6764, 8455, 9466, 13528, 16910, 18932, 23665, 33820, 37864, 47330, 67640, 89927, 94660, 179854, 189320, 359708, 421237, 449635, 719416, 842474, 899270, 1684948, 1798540, 2106185, 3369896, 3597080, 4212370, 8003503, 8424740, 16007006, 16849480, 32014012, 40017515, 64028024, 80035030, 160070060, 320140120]

約数ペア:

[(1, 320140120), (2, 160070060), (4, 80035030), (5, 64028024), (8, 40017515), (10, 32014012), (19, 16849480), (20, 16007006), (38, 8424740), (40, 8003503), (76, 4212370), (89, 3597080), (95, 3369896), (152, 2106185), (178, 1798540), (190, 1684948), (356, 899270), (380, 842474), (445, 719416), (712, 449635), (760, 421237), (890, 359708), (1691, 189320), (1780, 179854), (3382, 94660), (3560, 89927), (4733, 67640), (6764, 47330), (8455, 37864), (9466, 33820), (13528, 23665), (16910, 18932)]