208023020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{17659}}^1$

素因数の和:17718

約数の個数: 48

約数和(自身を含む): 474700800

約数和(自身を除く): 266677780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2945, 5890, 11780, 17659, 35318, 70636, 88295, 176590, 335521, 353180, 547429, 671042, 1094858, 1342084, 1677605, 2189716, 2737145, 3355210, 5474290, 6710420, 10401151, 10948580, 20802302, 41604604, 52005755, 104011510, 208023020]

約数ペア:

[(1, 208023020), (2, 104011510), (4, 52005755), (5, 41604604), (10, 20802302), (19, 10948580), (20, 10401151), (31, 6710420), (38, 5474290), (62, 3355210), (76, 2737145), (95, 2189716), (124, 1677605), (155, 1342084), (190, 1094858), (310, 671042), (380, 547429), (589, 353180), (620, 335521), (1178, 176590), (2356, 88295), (2945, 70636), (5890, 35318), (11780, 17659)]