1280455821440

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{32798561}}^1$

素因数の和:32798641

約数の個数: 64

約数和(自身を含む): 3111271591320

約数和(自身を除く): 1830815769880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 488, 610, 640, 976, 1220, 1952, 2440, 3904, 4880, 7808, 9760, 19520, 39040, 32798561, 65597122, 131194244, 163992805, 262388488, 327985610, 524776976, 655971220, 1049553952, 1311942440, 2000712221, 2099107904, 2623884880, 4001424442, 4198215808, 5247769760, 8002848884, 10003561105, 10495539520, 16005697768, 20007122210, 20991079040, 32011395536, 40014244420, 64022791072, 80028488840, 128045582144, 160056977680, 256091164288, 320113955360, 640227910720, 1280455821440]

約数ペア:

[(1, 1280455821440), (2, 640227910720), (4, 320113955360), (5, 256091164288), (8, 160056977680), (10, 128045582144), (16, 80028488840), (20, 64022791072), (32, 40014244420), (40, 32011395536), (61, 20991079040), (64, 20007122210), (80, 16005697768), (122, 10495539520), (128, 10003561105), (160, 8002848884), (244, 5247769760), (305, 4198215808), (320, 4001424442), (488, 2623884880), (610, 2099107904), (640, 2000712221), (976, 1311942440), (1220, 1049553952), (1952, 655971220), (2440, 524776976), (3904, 327985610), (4880, 262388488), (7808, 163992805), (9760, 131194244), (19520, 65597122), (39040, 32798561)]