19874608

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:194

約数の個数: 80

約数和(自身を含む): 44997120

約数和(自身を除く): 25122512

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 47, 52, 76, 94, 104, 107, 152, 188, 208, 214, 247, 304, 376, 428, 494, 611, 752, 856, 893, 988, 1222, 1391, 1712, 1786, 1976, 2033, 2444, 2782, 3572, 3952, 4066, 4888, 5029, 5564, 7144, 8132, 9776, 10058, 11128, 11609, 14288, 16264, 20116, 22256, 23218, 26429, 32528, 40232, 46436, 52858, 65377, 80464, 92872, 95551, 105716, 130754, 185744, 191102, 211432, 261508, 382204, 422864, 523016, 764408, 1046032, 1242163, 1528816, 2484326, 4968652, 9937304, 19874608]

約数ペア:

[(1, 19874608), (2, 9937304), (4, 4968652), (8, 2484326), (13, 1528816), (16, 1242163), (19, 1046032), (26, 764408), (38, 523016), (47, 422864), (52, 382204), (76, 261508), (94, 211432), (104, 191102), (107, 185744), (152, 130754), (188, 105716), (208, 95551), (214, 92872), (247, 80464), (304, 65377), (376, 52858), (428, 46436), (494, 40232), (611, 32528), (752, 26429), (856, 23218), (893, 22256), (988, 20116), (1222, 16264), (1391, 14288), (1712, 11609), (1786, 11128), (1976, 10058), (2033, 9776), (2444, 8132), (2782, 7144), (3572, 5564), (3952, 5029), (4066, 4888)]