19958544

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:325

約数の個数: 120

約数和(自身を含む): 61281792

約数和(自身を除く): 41323248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 31, 34, 36, 48, 51, 62, 68, 72, 93, 102, 124, 136, 144, 153, 186, 204, 248, 263, 272, 279, 306, 372, 408, 496, 526, 527, 558, 612, 744, 789, 816, 1052, 1054, 1116, 1224, 1488, 1578, 1581, 2104, 2108, 2232, 2367, 2448, 3156, 3162, 4208, 4216, 4464, 4471, 4734, 4743, 6312, 6324, 8153, 8432, 8942, 9468, 9486, 12624, 12648, 13413, 16306, 17884, 18936, 18972, 24459, 25296, 26826, 32612, 35768, 37872, 37944, 40239, 48918, 53652, 65224, 71536, 73377, 75888, 80478, 97836, 107304, 130448, 138601, 146754, 160956, 195672, 214608, 277202, 293508, 321912, 391344, 415803, 554404, 587016, 643824, 831606, 1108808, 1174032, 1247409, 1663212, 2217616, 2494818, 3326424, 4989636, 6652848, 9979272, 19958544]

約数ペア:

[(1, 19958544), (2, 9979272), (3, 6652848), (4, 4989636), (6, 3326424), (8, 2494818), (9, 2217616), (12, 1663212), (16, 1247409), (17, 1174032), (18, 1108808), (24, 831606), (31, 643824), (34, 587016), (36, 554404), (48, 415803), (51, 391344), (62, 321912), (68, 293508), (72, 277202), (93, 214608), (102, 195672), (124, 160956), (136, 146754), (144, 138601), (153, 130448), (186, 107304), (204, 97836), (248, 80478), (263, 75888), (272, 73377), (279, 71536), (306, 65224), (372, 53652), (408, 48918), (496, 40239), (526, 37944), (527, 37872), (558, 35768), (612, 32612), (744, 26826), (789, 25296), (816, 24459), (1052, 18972), (1054, 18936), (1116, 17884), (1224, 16306), (1488, 13413), (1578, 12648), (1581, 12624), (2104, 9486), (2108, 9468), (2232, 8942), (2367, 8432), (2448, 8153), (3156, 6324), (3162, 6312), (4208, 4743), (4216, 4734), (4464, 4471)]