78521415

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:392

約数の個数: 64

約数和(自身を含む): 150543360

約数和(自身を除く): 72021945

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 107, 145, 203, 241, 321, 435, 535, 609, 723, 749, 1015, 1205, 1605, 1687, 2247, 3045, 3103, 3615, 3745, 5061, 6989, 8435, 9309, 11235, 15515, 20967, 21721, 25305, 25787, 34945, 46545, 48923, 65163, 77361, 104835, 108605, 128935, 146769, 180509, 244615, 325815, 386805, 541527, 733845, 747823, 902545, 2243469, 2707635, 3739115, 5234761, 11217345, 15704283, 26173805, 78521415]

約数ペア:

[(1, 78521415), (3, 26173805), (5, 15704283), (7, 11217345), (15, 5234761), (21, 3739115), (29, 2707635), (35, 2243469), (87, 902545), (105, 747823), (107, 733845), (145, 541527), (203, 386805), (241, 325815), (321, 244615), (435, 180509), (535, 146769), (609, 128935), (723, 108605), (749, 104835), (1015, 77361), (1205, 65163), (1605, 48923), (1687, 46545), (2247, 34945), (3045, 25787), (3103, 25305), (3615, 21721), (3745, 20967), (5061, 15515), (6989, 11235), (8435, 9309)]