72881860

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{661}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 158482800

約数和(自身を除く): 85600940

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 149, 185, 298, 370, 596, 661, 740, 745, 1322, 1490, 2644, 2980, 3305, 5513, 6610, 11026, 13220, 22052, 24457, 27565, 48914, 55130, 97828, 98489, 110260, 122285, 196978, 244570, 393956, 489140, 492445, 984890, 1969780, 3644093, 7288186, 14576372, 18220465, 36440930, 72881860]

約数ペア:

[(1, 72881860), (2, 36440930), (4, 18220465), (5, 14576372), (10, 7288186), (20, 3644093), (37, 1969780), (74, 984890), (148, 492445), (149, 489140), (185, 393956), (298, 244570), (370, 196978), (596, 122285), (661, 110260), (740, 98489), (745, 97828), (1322, 55130), (1490, 48914), (2644, 27565), (2980, 24457), (3305, 22052), (5513, 13220), (6610, 11026)]