128931440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{146513}}^1$

素因数の和:146537

約数の個数: 40

約数和(自身を含む): 327019248

約数和(自身を除く): 198087808

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 146513, 293026, 586052, 732565, 1172104, 1465130, 1611643, 2344208, 2930260, 3223286, 5860520, 6446572, 8058215, 11721040, 12893144, 16116430, 25786288, 32232860, 64465720, 128931440]

約数ペア:

[(1, 128931440), (2, 64465720), (4, 32232860), (5, 25786288), (8, 16116430), (10, 12893144), (11, 11721040), (16, 8058215), (20, 6446572), (22, 5860520), (40, 3223286), (44, 2930260), (55, 2344208), (80, 1611643), (88, 1465130), (110, 1172104), (176, 732565), (220, 586052), (440, 293026), (880, 146513)]