19512050

素因数分解:

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

素因数の和:120

約数の個数: 72

約数和(自身を含む): 40818816

約数和(自身を除く): 21306766

約数列:

[1, 2, 5, 10, 19, 23, 25, 38, 46, 47, 50, 94, 95, 115, 190, 230, 235, 361, 437, 470, 475, 575, 722, 874, 893, 950, 1081, 1150, 1175, 1786, 1805, 2162, 2185, 2350, 3610, 4370, 4465, 5405, 8303, 8930, 9025, 10810, 10925, 16606, 16967, 18050, 20539, 21850, 22325, 27025, 33934, 41078, 41515, 44650, 54050, 83030, 84835, 102695, 169670, 205390, 207575, 390241, 415150, 424175, 513475, 780482, 848350, 1026950, 1951205, 3902410, 9756025, 19512050]

約数ペア:

[(1, 19512050), (2, 9756025), (5, 3902410), (10, 1951205), (19, 1026950), (23, 848350), (25, 780482), (38, 513475), (46, 424175), (47, 415150), (50, 390241), (94, 207575), (95, 205390), (115, 169670), (190, 102695), (230, 84835), (235, 83030), (361, 54050), (437, 44650), (470, 41515), (475, 41078), (575, 33934), (722, 27025), (874, 22325), (893, 21850), (950, 20539), (1081, 18050), (1150, 16967), (1175, 16606), (1786, 10925), (1805, 10810), (2162, 9025), (2185, 8930), (2350, 8303), (3610, 5405), (4370, 4465)]