218204080

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{443}}^1$

素因数の和:634

約数の個数: 80

約数和(自身を含む): 523252224

約数和(自身を除く): 305048144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 131, 188, 235, 262, 376, 443, 470, 524, 655, 752, 886, 940, 1048, 1310, 1772, 1880, 2096, 2215, 2620, 3544, 3760, 4430, 5240, 6157, 7088, 8860, 10480, 12314, 17720, 20821, 24628, 30785, 35440, 41642, 49256, 58033, 61570, 83284, 98512, 104105, 116066, 123140, 166568, 208210, 232132, 246280, 290165, 333136, 416420, 464264, 492560, 580330, 832840, 928528, 1160660, 1665680, 2321320, 2727551, 4642640, 5455102, 10910204, 13637755, 21820408, 27275510, 43640816, 54551020, 109102040, 218204080]

約数ペア:

[(1, 218204080), (2, 109102040), (4, 54551020), (5, 43640816), (8, 27275510), (10, 21820408), (16, 13637755), (20, 10910204), (40, 5455102), (47, 4642640), (80, 2727551), (94, 2321320), (131, 1665680), (188, 1160660), (235, 928528), (262, 832840), (376, 580330), (443, 492560), (470, 464264), (524, 416420), (655, 333136), (752, 290165), (886, 246280), (940, 232132), (1048, 208210), (1310, 166568), (1772, 123140), (1880, 116066), (2096, 104105), (2215, 98512), (2620, 83284), (3544, 61570), (3760, 58033), (4430, 49256), (5240, 41642), (6157, 35440), (7088, 30785), (8860, 24628), (10480, 20821), (12314, 17720)]