20217465065

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1\times {\mathrm{379}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 28662336000

約数和(自身を除く): 8444870935

約数列:

[1, 5, 7, 35, 53, 149, 193, 265, 371, 379, 745, 965, 1043, 1351, 1855, 1895, 2653, 5215, 6755, 7897, 10229, 13265, 20087, 28757, 39485, 51145, 55279, 56471, 71603, 73147, 100435, 140609, 143785, 201299, 276395, 282355, 358015, 365735, 395297, 512029, 703045, 1006495, 1524121, 1976485, 2560145, 2992963, 3876791, 7620605, 10668847, 10898903, 14964815, 19383955, 20950741, 27137537, 53344235, 54494515, 76292321, 104753705, 135687685, 381461605, 577641859, 2888209295, 4043493013, 20217465065]

約数ペア:

[(1, 20217465065), (5, 4043493013), (7, 2888209295), (35, 577641859), (53, 381461605), (149, 135687685), (193, 104753705), (265, 76292321), (371, 54494515), (379, 53344235), (745, 27137537), (965, 20950741), (1043, 19383955), (1351, 14964815), (1855, 10898903), (1895, 10668847), (2653, 7620605), (5215, 3876791), (6755, 2992963), (7897, 2560145), (10229, 1976485), (13265, 1524121), (20087, 1006495), (28757, 703045), (39485, 512029), (51145, 395297), (55279, 365735), (56471, 358015), (71603, 282355), (73147, 276395), (100435, 201299), (140609, 143785)]