203416875

素因数分解:

$3^2\times 5^4\times {\mathrm{29}}^2\times {\mathrm{43}}^1$

素因数の和:127

約数の個数: 90

約数和(自身を含む): 389103572

約数和(自身を除く): 185686697

約数列:

[1, 3, 5, 9, 15, 25, 29, 43, 45, 75, 87, 125, 129, 145, 215, 225, 261, 375, 387, 435, 625, 645, 725, 841, 1075, 1125, 1247, 1305, 1875, 1935, 2175, 2523, 3225, 3625, 3741, 4205, 5375, 5625, 6235, 6525, 7569, 9675, 10875, 11223, 12615, 16125, 18125, 18705, 21025, 26875, 31175, 32625, 36163, 37845, 48375, 54375, 56115, 63075, 80625, 93525, 105125, 108489, 155875, 163125, 180815, 189225, 241875, 280575, 315375, 325467, 467625, 525625, 542445, 779375, 904075, 946125, 1402875, 1576875, 1627335, 2338125, 2712225, 4520375, 4730625, 7014375, 8136675, 13561125, 22601875, 40683375, 67805625, 203416875]

約数ペア:

[(1, 203416875), (3, 67805625), (5, 40683375), (9, 22601875), (15, 13561125), (25, 8136675), (29, 7014375), (43, 4730625), (45, 4520375), (75, 2712225), (87, 2338125), (125, 1627335), (129, 1576875), (145, 1402875), (215, 946125), (225, 904075), (261, 779375), (375, 542445), (387, 525625), (435, 467625), (625, 325467), (645, 315375), (725, 280575), (841, 241875), (1075, 189225), (1125, 180815), (1247, 163125), (1305, 155875), (1875, 108489), (1935, 105125), (2175, 93525), (2523, 80625), (3225, 63075), (3625, 56115), (3741, 54375), (4205, 48375), (5375, 37845), (5625, 36163), (6235, 32625), (6525, 31175), (7569, 26875), (9675, 21025), (10875, 18705), (11223, 18125), (12615, 16125)]