28279969315

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{1811}}^1$

素因数の和:2060

約数の個数: 64

約数和(自身を含む): 38682749952

約数和(自身を除く): 10402780637

約数列:

[1, 5, 13, 37, 43, 65, 151, 185, 215, 481, 559, 755, 1591, 1811, 1963, 2405, 2795, 5587, 6493, 7955, 9055, 9815, 20683, 23543, 27935, 32465, 67007, 72631, 77873, 84409, 103415, 117715, 240241, 273461, 335035, 363155, 389365, 422045, 871091, 1012349, 1201205, 1367305, 2881301, 3123133, 3554993, 4355455, 5061745, 10118057, 11758823, 14406505, 15615665, 17774965, 37456913, 50590285, 58794115, 131534741, 152864699, 187284565, 435076451, 657673705, 764323495, 2175382255, 5655993863, 28279969315]

約数ペア:

[(1, 28279969315), (5, 5655993863), (13, 2175382255), (37, 764323495), (43, 657673705), (65, 435076451), (151, 187284565), (185, 152864699), (215, 131534741), (481, 58794115), (559, 50590285), (755, 37456913), (1591, 17774965), (1811, 15615665), (1963, 14406505), (2405, 11758823), (2795, 10118057), (5587, 5061745), (6493, 4355455), (7955, 3554993), (9055, 3123133), (9815, 2881301), (20683, 1367305), (23543, 1201205), (27935, 1012349), (32465, 871091), (67007, 422045), (72631, 389365), (77873, 363155), (84409, 335035), (103415, 273461), (117715, 240241)]