18168700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 43747200

約数和(自身を除く): 25578500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 83, 100, 110, 166, 199, 220, 275, 332, 398, 415, 550, 796, 830, 913, 995, 1100, 1660, 1826, 1990, 2075, 2189, 3652, 3980, 4150, 4378, 4565, 4975, 8300, 8756, 9130, 9950, 10945, 16517, 18260, 19900, 21890, 22825, 33034, 43780, 45650, 54725, 66068, 82585, 91300, 109450, 165170, 181687, 218900, 330340, 363374, 412925, 726748, 825850, 908435, 1651700, 1816870, 3633740, 4542175, 9084350, 18168700]

約数ペア:

[(1, 18168700), (2, 9084350), (4, 4542175), (5, 3633740), (10, 1816870), (11, 1651700), (20, 908435), (22, 825850), (25, 726748), (44, 412925), (50, 363374), (55, 330340), (83, 218900), (100, 181687), (110, 165170), (166, 109450), (199, 91300), (220, 82585), (275, 66068), (332, 54725), (398, 45650), (415, 43780), (550, 33034), (796, 22825), (830, 21890), (913, 19900), (995, 18260), (1100, 16517), (1660, 10945), (1826, 9950), (1990, 9130), (2075, 8756), (2189, 8300), (3652, 4975), (3980, 4565), (4150, 4378)]