7777761260

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{19051}}^1$

素因数の和:19346

約数の個数: 48

約数和(自身を含む): 16563808800

約数和(自身を除く): 8786047540

約数列:

[1, 2, 4, 5, 10, 20, 137, 149, 274, 298, 548, 596, 685, 745, 1370, 1490, 2740, 2980, 19051, 20413, 38102, 40826, 76204, 81652, 95255, 102065, 190510, 204130, 381020, 408260, 2609987, 2838599, 5219974, 5677198, 10439948, 11354396, 13049935, 14192995, 26099870, 28385990, 52199740, 56771980, 388888063, 777776126, 1555552252, 1944440315, 3888880630, 7777761260]

約数ペア:

[(1, 7777761260), (2, 3888880630), (4, 1944440315), (5, 1555552252), (10, 777776126), (20, 388888063), (137, 56771980), (149, 52199740), (274, 28385990), (298, 26099870), (548, 14192995), (596, 13049935), (685, 11354396), (745, 10439948), (1370, 5677198), (1490, 5219974), (2740, 2838599), (2980, 2609987), (19051, 408260), (20413, 381020), (38102, 204130), (40826, 190510), (76204, 102065), (81652, 95255)]