19301492

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 42517440

約数和(自身を除く): 23215948

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 71, 73, 76, 98, 133, 142, 146, 196, 266, 284, 292, 497, 511, 532, 931, 994, 1022, 1349, 1387, 1862, 1988, 2044, 2698, 2774, 3479, 3577, 3724, 5183, 5396, 5548, 6958, 7154, 9443, 9709, 10366, 13916, 14308, 18886, 19418, 20732, 36281, 37772, 38836, 66101, 67963, 72562, 98477, 132202, 135926, 145124, 196954, 253967, 264404, 271852, 393908, 507934, 689339, 1015868, 1378678, 2757356, 4825373, 9650746, 19301492]

約数ペア:

[(1, 19301492), (2, 9650746), (4, 4825373), (7, 2757356), (14, 1378678), (19, 1015868), (28, 689339), (38, 507934), (49, 393908), (71, 271852), (73, 264404), (76, 253967), (98, 196954), (133, 145124), (142, 135926), (146, 132202), (196, 98477), (266, 72562), (284, 67963), (292, 66101), (497, 38836), (511, 37772), (532, 36281), (931, 20732), (994, 19418), (1022, 18886), (1349, 14308), (1387, 13916), (1862, 10366), (1988, 9709), (2044, 9443), (2698, 7154), (2774, 6958), (3479, 5548), (3577, 5396), (3724, 5183)]