261640450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{1427}}^1$

素因数の和:1651

約数の個数: 48

約数和(自身を含む): 515279520

約数和(自身を除く): 253639070

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 193, 386, 475, 950, 965, 1427, 1930, 2854, 3667, 4825, 7135, 7334, 9650, 14270, 18335, 27113, 35675, 36670, 54226, 71350, 91675, 135565, 183350, 271130, 275411, 550822, 677825, 1355650, 1377055, 2754110, 5232809, 6885275, 10465618, 13770550, 26164045, 52328090, 130820225, 261640450]

約数ペア:

[(1, 261640450), (2, 130820225), (5, 52328090), (10, 26164045), (19, 13770550), (25, 10465618), (38, 6885275), (50, 5232809), (95, 2754110), (190, 1377055), (193, 1355650), (386, 677825), (475, 550822), (950, 275411), (965, 271130), (1427, 183350), (1930, 135565), (2854, 91675), (3667, 71350), (4825, 54226), (7135, 36670), (7334, 35675), (9650, 27113), (14270, 18335)]