28907890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{2411}}^1$

素因数の和:2538

約数の個数: 32

約数和(自身を含む): 57309120

約数和(自身を除く): 28401230

約数列:

[1, 2, 5, 10, 11, 22, 55, 109, 110, 218, 545, 1090, 1199, 2398, 2411, 4822, 5995, 11990, 12055, 24110, 26521, 53042, 132605, 262799, 265210, 525598, 1313995, 2627990, 2890789, 5781578, 14453945, 28907890]

約数ペア:

[(1, 28907890), (2, 14453945), (5, 5781578), (10, 2890789), (11, 2627990), (22, 1313995), (55, 525598), (109, 265210), (110, 262799), (218, 132605), (545, 53042), (1090, 26521), (1199, 24110), (2398, 12055), (2411, 11990), (4822, 5995)]