1978889440

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1124369}}^1$

素因数の和:1124395

約数の個数: 48

約数和(自身を含む): 5100142320

約数和(自身を除く): 3121252880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 1124369, 2248738, 4497476, 5621845, 8994952, 11243690, 12368059, 17989904, 22487380, 24736118, 35979808, 44974760, 49472236, 61840295, 89949520, 98944472, 123680590, 179899040, 197888944, 247361180, 395777888, 494722360, 989444720, 1978889440]

約数ペア:

[(1, 1978889440), (2, 989444720), (4, 494722360), (5, 395777888), (8, 247361180), (10, 197888944), (11, 179899040), (16, 123680590), (20, 98944472), (22, 89949520), (32, 61840295), (40, 49472236), (44, 44974760), (55, 35979808), (80, 24736118), (88, 22487380), (110, 17989904), (160, 12368059), (176, 11243690), (220, 8994952), (352, 5621845), (440, 4497476), (880, 2248738), (1760, 1124369)]