133238620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{691}}^1$

素因数の和:1042

約数の個数: 48

約数和(自身を含む): 290174976

約数和(自身を除く): 156936356

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 311, 620, 622, 691, 1244, 1382, 1555, 2764, 3110, 3455, 6220, 6910, 9641, 13820, 19282, 21421, 38564, 42842, 48205, 85684, 96410, 107105, 192820, 214210, 214901, 428420, 429802, 859604, 1074505, 2149010, 4298020, 6661931, 13323862, 26647724, 33309655, 66619310, 133238620]

約数ペア:

[(1, 133238620), (2, 66619310), (4, 33309655), (5, 26647724), (10, 13323862), (20, 6661931), (31, 4298020), (62, 2149010), (124, 1074505), (155, 859604), (310, 429802), (311, 428420), (620, 214901), (622, 214210), (691, 192820), (1244, 107105), (1382, 96410), (1555, 85684), (2764, 48205), (3110, 42842), (3455, 38564), (6220, 21421), (6910, 19282), (9641, 13820)]