251006890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:379

約数の個数: 64

約数和(自身を含む): 486324000

約数和(自身を除く): 235317110

約数列:

[1, 2, 5, 10, 29, 37, 58, 74, 145, 149, 157, 185, 290, 298, 314, 370, 745, 785, 1073, 1490, 1570, 2146, 4321, 4553, 5365, 5513, 5809, 8642, 9106, 10730, 11026, 11618, 21605, 22765, 23393, 27565, 29045, 43210, 45530, 46786, 55130, 58090, 116965, 159877, 168461, 233930, 319754, 336922, 678397, 799385, 842305, 865541, 1356794, 1598770, 1684610, 1731082, 3391985, 4327705, 6783970, 8655410, 25100689, 50201378, 125503445, 251006890]

約数ペア:

[(1, 251006890), (2, 125503445), (5, 50201378), (10, 25100689), (29, 8655410), (37, 6783970), (58, 4327705), (74, 3391985), (145, 1731082), (149, 1684610), (157, 1598770), (185, 1356794), (290, 865541), (298, 842305), (314, 799385), (370, 678397), (745, 336922), (785, 319754), (1073, 233930), (1490, 168461), (1570, 159877), (2146, 116965), (4321, 58090), (4553, 55130), (5365, 46786), (5513, 45530), (5809, 43210), (8642, 29045), (9106, 27565), (10730, 23393), (11026, 22765), (11618, 21605)]