123671805

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 218972160

約数和(自身を除く): 95300355

約数列:

[1, 3, 5, 15, 23, 29, 47, 69, 87, 115, 141, 145, 235, 263, 345, 435, 667, 705, 789, 1081, 1315, 1363, 2001, 3243, 3335, 3945, 4089, 5405, 6049, 6815, 7627, 10005, 12361, 16215, 18147, 20445, 22881, 30245, 31349, 37083, 38135, 61805, 90735, 94047, 114405, 156745, 175421, 185415, 284303, 358469, 470235, 526263, 852909, 877105, 1075407, 1421515, 1792345, 2631315, 4264545, 5377035, 8244787, 24734361, 41223935, 123671805]

約数ペア:

[(1, 123671805), (3, 41223935), (5, 24734361), (15, 8244787), (23, 5377035), (29, 4264545), (47, 2631315), (69, 1792345), (87, 1421515), (115, 1075407), (141, 877105), (145, 852909), (235, 526263), (263, 470235), (345, 358469), (435, 284303), (667, 185415), (705, 175421), (789, 156745), (1081, 114405), (1315, 94047), (1363, 90735), (2001, 61805), (3243, 38135), (3335, 37083), (3945, 31349), (4089, 30245), (5405, 22881), (6049, 20445), (6815, 18147), (7627, 16215), (10005, 12361)]