521019740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{3121}}^1$

素因数の和:3638

約数の個数: 48

約数和(自身を含む): 1161234144

約数和(自身を除く): 640214404

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 491, 982, 1964, 2455, 3121, 4910, 6242, 8347, 9820, 12484, 15605, 16694, 31210, 33388, 41735, 53057, 62420, 83470, 106114, 166940, 212228, 265285, 530570, 1061140, 1532411, 3064822, 6129644, 7662055, 15324110, 26050987, 30648220, 52101974, 104203948, 130254935, 260509870, 521019740]

約数ペア:

[(1, 521019740), (2, 260509870), (4, 130254935), (5, 104203948), (10, 52101974), (17, 30648220), (20, 26050987), (34, 15324110), (68, 7662055), (85, 6129644), (170, 3064822), (340, 1532411), (491, 1061140), (982, 530570), (1964, 265285), (2455, 212228), (3121, 166940), (4910, 106114), (6242, 83470), (8347, 62420), (9820, 53057), (12484, 41735), (15605, 33388), (16694, 31210)]