1280723864

素因数分解:

$2^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{275543}}^1$

素因数の和:275639

約数の個数: 32

約数和(自身を含む): 2777483520

約数和(自身を除く): 1496759656

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 83, 166, 332, 581, 664, 1162, 2324, 4648, 275543, 551086, 1102172, 1928801, 2204344, 3857602, 7715204, 15430408, 22870069, 45740138, 91480276, 160090483, 182960552, 320180966, 640361932, 1280723864]

約数ペア:

[(1, 1280723864), (2, 640361932), (4, 320180966), (7, 182960552), (8, 160090483), (14, 91480276), (28, 45740138), (56, 22870069), (83, 15430408), (166, 7715204), (332, 3857602), (581, 2204344), (664, 1928801), (1162, 1102172), (2324, 551086), (4648, 275543)]