20199981492

素因数分解:

$2^2\times 3^2\times {\mathrm{131}}^1\times {\mathrm{269}}^1\times {\mathrm{15923}}^1$

素因数の和:16333

約数の個数: 72

約数和(自身を含む): 51645353760

約数和(自身を除く): 31445372268

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 131, 262, 269, 393, 524, 538, 786, 807, 1076, 1179, 1572, 1614, 2358, 2421, 3228, 4716, 4842, 9684, 15923, 31846, 35239, 47769, 63692, 70478, 95538, 105717, 140956, 143307, 191076, 211434, 286614, 317151, 422868, 573228, 634302, 1268604, 2085913, 4171826, 4283287, 6257739, 8343652, 8566574, 12515478, 12849861, 17133148, 18773217, 25030956, 25699722, 37546434, 38549583, 51399444, 75092868, 77099166, 154198332, 561110597, 1122221194, 1683331791, 2244442388, 3366663582, 5049995373, 6733327164, 10099990746, 20199981492]

約数ペア:

[(1, 20199981492), (2, 10099990746), (3, 6733327164), (4, 5049995373), (6, 3366663582), (9, 2244442388), (12, 1683331791), (18, 1122221194), (36, 561110597), (131, 154198332), (262, 77099166), (269, 75092868), (393, 51399444), (524, 38549583), (538, 37546434), (786, 25699722), (807, 25030956), (1076, 18773217), (1179, 17133148), (1572, 12849861), (1614, 12515478), (2358, 8566574), (2421, 8343652), (3228, 6257739), (4716, 4283287), (4842, 4171826), (9684, 2085913), (15923, 1268604), (31846, 634302), (35239, 573228), (47769, 422868), (63692, 317151), (70478, 286614), (95538, 211434), (105717, 191076), (140956, 143307)]