19043920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1097}}^1$

素因数の和:1148

約数の個数: 80

約数和(自身を含む): 52282368

約数和(自身を除く): 33238448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1097, 1240, 1736, 2170, 2194, 2480, 3472, 4340, 4388, 5485, 7679, 8680, 8776, 10970, 15358, 17360, 17552, 21940, 30716, 34007, 38395, 43880, 61432, 68014, 76790, 87760, 122864, 136028, 153580, 170035, 238049, 272056, 307160, 340070, 476098, 544112, 614320, 680140, 952196, 1190245, 1360280, 1904392, 2380490, 2720560, 3808784, 4760980, 9521960, 19043920]

約数ペア:

[(1, 19043920), (2, 9521960), (4, 4760980), (5, 3808784), (7, 2720560), (8, 2380490), (10, 1904392), (14, 1360280), (16, 1190245), (20, 952196), (28, 680140), (31, 614320), (35, 544112), (40, 476098), (56, 340070), (62, 307160), (70, 272056), (80, 238049), (112, 170035), (124, 153580), (140, 136028), (155, 122864), (217, 87760), (248, 76790), (280, 68014), (310, 61432), (434, 43880), (496, 38395), (560, 34007), (620, 30716), (868, 21940), (1085, 17552), (1097, 17360), (1240, 15358), (1736, 10970), (2170, 8776), (2194, 8680), (2480, 7679), (3472, 5485), (4340, 4388)]