20375030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 42517440

約数和(自身を除く): 22142410

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 73, 95, 113, 130, 146, 190, 226, 247, 365, 494, 565, 730, 949, 1130, 1235, 1387, 1469, 1898, 2147, 2470, 2774, 2938, 4294, 4745, 6935, 7345, 8249, 9490, 10735, 13870, 14690, 16498, 18031, 21470, 27911, 36062, 41245, 55822, 82490, 90155, 107237, 139555, 156731, 180310, 214474, 279110, 313462, 536185, 783655, 1072370, 1567310, 2037503, 4075006, 10187515, 20375030]

約数ペア:

[(1, 20375030), (2, 10187515), (5, 4075006), (10, 2037503), (13, 1567310), (19, 1072370), (26, 783655), (38, 536185), (65, 313462), (73, 279110), (95, 214474), (113, 180310), (130, 156731), (146, 139555), (190, 107237), (226, 90155), (247, 82490), (365, 55822), (494, 41245), (565, 36062), (730, 27911), (949, 21470), (1130, 18031), (1235, 16498), (1387, 14690), (1469, 13870), (1898, 10735), (2147, 9490), (2470, 8249), (2774, 7345), (2938, 6935), (4294, 4745)]