20591930

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1361}}^1$

素因数の和:1474

約数の個数: 32

約数和(自身を含む): 39715920

約数和(自身を除く): 19123990

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 170, 178, 445, 890, 1361, 1513, 2722, 3026, 6805, 7565, 13610, 15130, 23137, 46274, 115685, 121129, 231370, 242258, 605645, 1211290, 2059193, 4118386, 10295965, 20591930]

約数ペア:

[(1, 20591930), (2, 10295965), (5, 4118386), (10, 2059193), (17, 1211290), (34, 605645), (85, 242258), (89, 231370), (170, 121129), (178, 115685), (445, 46274), (890, 23137), (1361, 15130), (1513, 13610), (2722, 7565), (3026, 6805)]