31891184

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1$

素因数の和:378

約数の個数: 80

約数和(自身を含む): 73120320

約数和(自身を除く): 41229136

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 29, 34, 52, 58, 68, 104, 116, 136, 208, 221, 232, 272, 311, 377, 442, 464, 493, 622, 754, 884, 986, 1244, 1508, 1768, 1972, 2488, 3016, 3536, 3944, 4043, 4976, 5287, 6032, 6409, 7888, 8086, 9019, 10574, 12818, 16172, 18038, 21148, 25636, 32344, 36076, 42296, 51272, 64688, 68731, 72152, 84592, 102544, 117247, 137462, 144304, 153323, 234494, 274924, 306646, 468988, 549848, 613292, 937976, 1099696, 1226584, 1875952, 1993199, 2453168, 3986398, 7972796, 15945592, 31891184]

約数ペア:

[(1, 31891184), (2, 15945592), (4, 7972796), (8, 3986398), (13, 2453168), (16, 1993199), (17, 1875952), (26, 1226584), (29, 1099696), (34, 937976), (52, 613292), (58, 549848), (68, 468988), (104, 306646), (116, 274924), (136, 234494), (208, 153323), (221, 144304), (232, 137462), (272, 117247), (311, 102544), (377, 84592), (442, 72152), (464, 68731), (493, 64688), (622, 51272), (754, 42296), (884, 36076), (986, 32344), (1244, 25636), (1508, 21148), (1768, 18038), (1972, 16172), (2488, 12818), (3016, 10574), (3536, 9019), (3944, 8086), (4043, 7888), (4976, 6409), (5287, 6032)]