207178540

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{1879}}^1$

素因数の和:2074

約数の個数: 48

約数和(自身を含む): 450072000

約数和(自身を除く): 242893460

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 149, 185, 298, 370, 596, 740, 745, 1490, 1879, 2980, 3758, 5513, 7516, 9395, 11026, 18790, 22052, 27565, 37580, 55130, 69523, 110260, 139046, 278092, 279971, 347615, 559942, 695230, 1119884, 1390460, 1399855, 2799710, 5599420, 10358927, 20717854, 41435708, 51794635, 103589270, 207178540]

約数ペア:

[(1, 207178540), (2, 103589270), (4, 51794635), (5, 41435708), (10, 20717854), (20, 10358927), (37, 5599420), (74, 2799710), (148, 1399855), (149, 1390460), (185, 1119884), (298, 695230), (370, 559942), (596, 347615), (740, 279971), (745, 278092), (1490, 139046), (1879, 110260), (2980, 69523), (3758, 55130), (5513, 37580), (7516, 27565), (9395, 22052), (11026, 18790)]