1821984920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{47497}}^1$

素因数の和:47652

約数の個数: 64

約数和(自身を含む): 4719401280

約数和(自身を除く): 2897416360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 137, 140, 274, 280, 548, 685, 959, 1096, 1370, 1918, 2740, 3836, 4795, 5480, 7672, 9590, 19180, 38360, 47497, 94994, 189988, 237485, 332479, 379976, 474970, 664958, 949940, 1329916, 1662395, 1899880, 2659832, 3324790, 6507089, 6649580, 13014178, 13299160, 26028356, 32535445, 45549623, 52056712, 65070890, 91099246, 130141780, 182198492, 227748115, 260283560, 364396984, 455496230, 910992460, 1821984920]

約数ペア:

[(1, 1821984920), (2, 910992460), (4, 455496230), (5, 364396984), (7, 260283560), (8, 227748115), (10, 182198492), (14, 130141780), (20, 91099246), (28, 65070890), (35, 52056712), (40, 45549623), (56, 32535445), (70, 26028356), (137, 13299160), (140, 13014178), (274, 6649580), (280, 6507089), (548, 3324790), (685, 2659832), (959, 1899880), (1096, 1662395), (1370, 1329916), (1918, 949940), (2740, 664958), (3836, 474970), (4795, 379976), (5480, 332479), (7672, 237485), (9590, 189988), (19180, 94994), (38360, 47497)]