421556905

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2221}}^1$

素因数の和:2290

約数の個数: 64

約数和(自身を含む): 691130880

約数和(自身を除く): 269573975

約数列:

[1, 5, 7, 11, 17, 29, 35, 55, 77, 85, 119, 145, 187, 203, 319, 385, 493, 595, 935, 1015, 1309, 1595, 2221, 2233, 2465, 3451, 5423, 6545, 11105, 11165, 15547, 17255, 24431, 27115, 37757, 37961, 64409, 77735, 122155, 171017, 188785, 189805, 264299, 322045, 415327, 450863, 708499, 855085, 1094953, 1321495, 2076635, 2254315, 2907289, 3542495, 4959493, 5474765, 7664671, 12044483, 14536445, 24797465, 38323355, 60222415, 84311381, 421556905]

約数ペア:

[(1, 421556905), (5, 84311381), (7, 60222415), (11, 38323355), (17, 24797465), (29, 14536445), (35, 12044483), (55, 7664671), (77, 5474765), (85, 4959493), (119, 3542495), (145, 2907289), (187, 2254315), (203, 2076635), (319, 1321495), (385, 1094953), (493, 855085), (595, 708499), (935, 450863), (1015, 415327), (1309, 322045), (1595, 264299), (2221, 189805), (2233, 188785), (2465, 171017), (3451, 122155), (5423, 77735), (6545, 64409), (11105, 37961), (11165, 37757), (15547, 27115), (17255, 24431)]