421739780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{273857}}^1$

素因数の和:273884

約数の個数: 48

約数和(自身を含む): 1104195456

約数和(自身を除く): 682455676

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 273857, 547714, 1095428, 1369285, 1916999, 2738570, 3012427, 3833998, 5477140, 6024854, 7667996, 9584995, 12049708, 15062135, 19169990, 21086989, 30124270, 38339980, 42173978, 60248540, 84347956, 105434945, 210869890, 421739780]

約数ペア:

[(1, 421739780), (2, 210869890), (4, 105434945), (5, 84347956), (7, 60248540), (10, 42173978), (11, 38339980), (14, 30124270), (20, 21086989), (22, 19169990), (28, 15062135), (35, 12049708), (44, 9584995), (55, 7667996), (70, 6024854), (77, 5477140), (110, 3833998), (140, 3012427), (154, 2738570), (220, 1916999), (308, 1369285), (385, 1095428), (770, 547714), (1540, 273857)]