98671360

素因数分解:

$2^8\times 5^1\times {\mathrm{157}}^1\times {\mathrm{491}}^1$

素因数の和:669

約数の個数: 72

約数和(自身を含む): 238338576

約数和(自身を除く): 139667216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 256, 314, 320, 491, 628, 640, 785, 982, 1256, 1280, 1570, 1964, 2455, 2512, 3140, 3928, 4910, 5024, 6280, 7856, 9820, 10048, 12560, 15712, 19640, 20096, 25120, 31424, 39280, 40192, 50240, 62848, 77087, 78560, 100480, 125696, 154174, 157120, 200960, 308348, 314240, 385435, 616696, 628480, 770870, 1233392, 1541740, 2466784, 3083480, 4933568, 6166960, 9867136, 12333920, 19734272, 24667840, 49335680, 98671360]

約数ペア:

[(1, 98671360), (2, 49335680), (4, 24667840), (5, 19734272), (8, 12333920), (10, 9867136), (16, 6166960), (20, 4933568), (32, 3083480), (40, 2466784), (64, 1541740), (80, 1233392), (128, 770870), (157, 628480), (160, 616696), (256, 385435), (314, 314240), (320, 308348), (491, 200960), (628, 157120), (640, 154174), (785, 125696), (982, 100480), (1256, 78560), (1280, 77087), (1570, 62848), (1964, 50240), (2455, 40192), (2512, 39280), (3140, 31424), (3928, 25120), (4910, 20096), (5024, 19640), (6280, 15712), (7856, 12560), (9820, 10048)]