207645140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{610721}}^1$

素因数の和:610747

約数の個数: 24

約数和(自身を含む): 461705832

約数和(自身を除く): 254060692

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 610721, 1221442, 2442884, 3053605, 6107210, 10382257, 12214420, 20764514, 41529028, 51911285, 103822570, 207645140]

約数ペア:

[(1, 207645140), (2, 103822570), (4, 51911285), (5, 41529028), (10, 20764514), (17, 12214420), (20, 10382257), (34, 6107210), (68, 3053605), (85, 2442884), (170, 1221442), (340, 610721)]