7209086980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21203197}}^1$

素因数の和:21203223

約数の個数: 24

約数和(自身を含む): 16029617688

約数和(自身を除く): 8820530708

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 21203197, 42406394, 84812788, 106015985, 212031970, 360454349, 424063940, 720908698, 1441817396, 1802271745, 3604543490, 7209086980]

約数ペア:

[(1, 7209086980), (2, 3604543490), (4, 1802271745), (5, 1441817396), (10, 720908698), (17, 424063940), (20, 360454349), (34, 212031970), (68, 106015985), (85, 84812788), (170, 42406394), (340, 21203197)]