28213420

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{14543}}^1$

素因数の和:14649

約数の個数: 24

約数和(自身を含む): 59863104

約数和(自身を除く): 31649684

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 14543, 29086, 58172, 72715, 145430, 290860, 1410671, 2821342, 5642684, 7053355, 14106710, 28213420]

約数ペア:

[(1, 28213420), (2, 14106710), (4, 7053355), (5, 5642684), (10, 2821342), (20, 1410671), (97, 290860), (194, 145430), (388, 72715), (485, 58172), (970, 29086), (1940, 14543)]