20347982060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20763247}}^1$

素因数の和:20763270

約数の個数: 36

約数和(自身を含む): 49707215712

約数和(自身を除く): 29359233652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20763247, 41526494, 83052988, 103816235, 145342729, 207632470, 290685458, 415264940, 581370916, 726713645, 1017399103, 1453427290, 2034798206, 2906854580, 4069596412, 5086995515, 10173991030, 20347982060]

約数ペア:

[(1, 20347982060), (2, 10173991030), (4, 5086995515), (5, 4069596412), (7, 2906854580), (10, 2034798206), (14, 1453427290), (20, 1017399103), (28, 726713645), (35, 581370916), (49, 415264940), (70, 290685458), (98, 207632470), (140, 145342729), (196, 103816235), (245, 83052988), (490, 41526494), (980, 20763247)]