55142900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:393

約数の個数: 72

約数和(自身を含む): 128116800

約数和(自身を除く): 72973900

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 163, 170, 199, 326, 340, 398, 425, 652, 796, 815, 850, 995, 1630, 1700, 1990, 2771, 3260, 3383, 3980, 4075, 4975, 5542, 6766, 8150, 9950, 11084, 13532, 13855, 16300, 16915, 19900, 27710, 32437, 33830, 55420, 64874, 67660, 69275, 84575, 129748, 138550, 162185, 169150, 277100, 324370, 338300, 551429, 648740, 810925, 1102858, 1621850, 2205716, 2757145, 3243700, 5514290, 11028580, 13785725, 27571450, 55142900]

約数ペア:

[(1, 55142900), (2, 27571450), (4, 13785725), (5, 11028580), (10, 5514290), (17, 3243700), (20, 2757145), (25, 2205716), (34, 1621850), (50, 1102858), (68, 810925), (85, 648740), (100, 551429), (163, 338300), (170, 324370), (199, 277100), (326, 169150), (340, 162185), (398, 138550), (425, 129748), (652, 84575), (796, 69275), (815, 67660), (850, 64874), (995, 55420), (1630, 33830), (1700, 32437), (1990, 27710), (2771, 19900), (3260, 16915), (3383, 16300), (3980, 13855), (4075, 13532), (4975, 11084), (5542, 9950), (6766, 8150)]