68581720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 160056000

約数和(自身を除く): 91474280

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 149, 185, 296, 298, 311, 370, 596, 622, 740, 745, 1192, 1244, 1480, 1490, 1555, 2488, 2980, 3110, 5513, 5960, 6220, 11026, 11507, 12440, 22052, 23014, 27565, 44104, 46028, 46339, 55130, 57535, 92056, 92678, 110260, 115070, 185356, 220520, 230140, 231695, 370712, 460280, 463390, 926780, 1714543, 1853560, 3429086, 6858172, 8572715, 13716344, 17145430, 34290860, 68581720]

約数ペア:

[(1, 68581720), (2, 34290860), (4, 17145430), (5, 13716344), (8, 8572715), (10, 6858172), (20, 3429086), (37, 1853560), (40, 1714543), (74, 926780), (148, 463390), (149, 460280), (185, 370712), (296, 231695), (298, 230140), (311, 220520), (370, 185356), (596, 115070), (622, 110260), (740, 92678), (745, 92056), (1192, 57535), (1244, 55130), (1480, 46339), (1490, 46028), (1555, 44104), (2488, 27565), (2980, 23014), (3110, 22052), (5513, 12440), (5960, 11507), (6220, 11026)]