19922830

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:193

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 20719730

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 47, 94, 95, 97, 115, 190, 194, 230, 235, 437, 470, 485, 874, 893, 970, 1081, 1786, 1843, 2162, 2185, 2231, 3686, 4370, 4462, 4465, 4559, 5405, 8930, 9118, 9215, 10810, 11155, 18430, 20539, 22310, 22795, 41078, 42389, 45590, 84778, 86621, 102695, 104857, 173242, 205390, 209714, 211945, 423890, 433105, 524285, 866210, 1048570, 1992283, 3984566, 9961415, 19922830]

約数ペア:

[(1, 19922830), (2, 9961415), (5, 3984566), (10, 1992283), (19, 1048570), (23, 866210), (38, 524285), (46, 433105), (47, 423890), (94, 211945), (95, 209714), (97, 205390), (115, 173242), (190, 104857), (194, 102695), (230, 86621), (235, 84778), (437, 45590), (470, 42389), (485, 41078), (874, 22795), (893, 22310), (970, 20539), (1081, 18430), (1786, 11155), (1843, 10810), (2162, 9215), (2185, 9118), (2231, 8930), (3686, 5405), (4370, 4559), (4462, 4465)]