1780185855

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1$

素因数の和:517

約数の個数: 128

約数和(自身を含む): 3634937856

約数和(自身を除く): 1854752001

約数列:

[1, 3, 5, 7, 15, 17, 21, 23, 35, 51, 69, 85, 105, 115, 119, 131, 161, 255, 331, 345, 357, 391, 393, 483, 595, 655, 805, 917, 993, 1173, 1655, 1785, 1955, 1965, 2227, 2317, 2415, 2737, 2751, 3013, 4585, 4965, 5627, 5865, 6681, 6951, 7613, 8211, 9039, 11135, 11585, 13685, 13755, 15065, 15589, 16881, 21091, 22839, 28135, 33405, 34755, 38065, 39389, 41055, 43361, 45195, 46767, 51221, 53291, 63273, 77945, 84405, 105455, 114195, 118167, 129421, 130083, 153663, 159873, 196945, 216805, 233835, 256105, 266455, 303527, 316365, 358547, 388263, 590835, 647105, 650415, 737137, 768315, 799365, 905947, 910581, 997303, 1075641, 1517635, 1792735, 1941315, 2211411, 2717841, 2991909, 3685685, 4529735, 4552905, 4986515, 5159959, 5378205, 6981121, 11057055, 13589205, 14959545, 15479877, 16954151, 20943363, 25799795, 34905605, 50862453, 77399385, 84770755, 104716815, 118679057, 254312265, 356037171, 593395285, 1780185855]

約数ペア:

[(1, 1780185855), (3, 593395285), (5, 356037171), (7, 254312265), (15, 118679057), (17, 104716815), (21, 84770755), (23, 77399385), (35, 50862453), (51, 34905605), (69, 25799795), (85, 20943363), (105, 16954151), (115, 15479877), (119, 14959545), (131, 13589205), (161, 11057055), (255, 6981121), (331, 5378205), (345, 5159959), (357, 4986515), (391, 4552905), (393, 4529735), (483, 3685685), (595, 2991909), (655, 2717841), (805, 2211411), (917, 1941315), (993, 1792735), (1173, 1517635), (1655, 1075641), (1785, 997303), (1955, 910581), (1965, 905947), (2227, 799365), (2317, 768315), (2415, 737137), (2737, 650415), (2751, 647105), (3013, 590835), (4585, 388263), (4965, 358547), (5627, 316365), (5865, 303527), (6681, 266455), (6951, 256105), (7613, 233835), (8211, 216805), (9039, 196945), (11135, 159873), (11585, 153663), (13685, 130083), (13755, 129421), (15065, 118167), (15589, 114195), (16881, 105455), (21091, 84405), (22839, 77945), (28135, 63273), (33405, 53291), (34755, 51221), (38065, 46767), (39389, 45195), (41055, 43361)]