19850168

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 22727752

約数列:

[1, 2, 4, 8, 13, 26, 31, 47, 52, 62, 94, 104, 124, 131, 188, 248, 262, 376, 403, 524, 611, 806, 1048, 1222, 1457, 1612, 1703, 2444, 2914, 3224, 3406, 4061, 4888, 5828, 6157, 6812, 8122, 11656, 12314, 13624, 16244, 18941, 24628, 32488, 37882, 49256, 52793, 75764, 80041, 105586, 151528, 160082, 190867, 211172, 320164, 381734, 422344, 640328, 763468, 1526936, 2481271, 4962542, 9925084, 19850168]

約数ペア:

[(1, 19850168), (2, 9925084), (4, 4962542), (8, 2481271), (13, 1526936), (26, 763468), (31, 640328), (47, 422344), (52, 381734), (62, 320164), (94, 211172), (104, 190867), (124, 160082), (131, 151528), (188, 105586), (248, 80041), (262, 75764), (376, 52793), (403, 49256), (524, 37882), (611, 32488), (806, 24628), (1048, 18941), (1222, 16244), (1457, 13624), (1612, 12314), (1703, 11656), (2444, 8122), (2914, 6812), (3224, 6157), (3406, 5828), (4061, 4888)]