91989890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{3023}}^1$

素因数の和:3226

約数の個数: 32

約数和(自身を含む): 176359680

約数和(自身を除く): 84369790

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 179, 358, 895, 1790, 3023, 3043, 6046, 6086, 15115, 15215, 30230, 30430, 51391, 102782, 256955, 513910, 541117, 1082234, 2705585, 5411170, 9198989, 18397978, 45994945, 91989890]

約数ペア:

[(1, 91989890), (2, 45994945), (5, 18397978), (10, 9198989), (17, 5411170), (34, 2705585), (85, 1082234), (170, 541117), (179, 513910), (358, 256955), (895, 102782), (1790, 51391), (3023, 30430), (3043, 30230), (6046, 15215), (6086, 15115)]