18781110

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:290

約数の個数: 96

約数和(自身を含む): 52386048

約数和(自身を除く): 33604938

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 43, 45, 46, 69, 86, 90, 115, 129, 138, 207, 211, 215, 230, 258, 345, 387, 414, 422, 430, 633, 645, 690, 774, 989, 1035, 1055, 1266, 1290, 1899, 1935, 1978, 2070, 2110, 2967, 3165, 3798, 3870, 4853, 4945, 5934, 6330, 8901, 9073, 9495, 9706, 9890, 14559, 14835, 17802, 18146, 18990, 24265, 27219, 29118, 29670, 43677, 44505, 45365, 48530, 54438, 72795, 81657, 87354, 89010, 90730, 136095, 145590, 163314, 208679, 218385, 272190, 408285, 417358, 436770, 626037, 816570, 1043395, 1252074, 1878111, 2086790, 3130185, 3756222, 6260370, 9390555, 18781110]

約数ペア:

[(1, 18781110), (2, 9390555), (3, 6260370), (5, 3756222), (6, 3130185), (9, 2086790), (10, 1878111), (15, 1252074), (18, 1043395), (23, 816570), (30, 626037), (43, 436770), (45, 417358), (46, 408285), (69, 272190), (86, 218385), (90, 208679), (115, 163314), (129, 145590), (138, 136095), (207, 90730), (211, 89010), (215, 87354), (230, 81657), (258, 72795), (345, 54438), (387, 48530), (414, 45365), (422, 44505), (430, 43677), (633, 29670), (645, 29118), (690, 27219), (774, 24265), (989, 18990), (1035, 18146), (1055, 17802), (1266, 14835), (1290, 14559), (1899, 9890), (1935, 9706), (1978, 9495), (2070, 9073), (2110, 8901), (2967, 6330), (3165, 5934), (3798, 4945), (3870, 4853)]