2556554945

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{397}}^1$

素因数の和:642

約数の個数: 64

約数和(自身を含む): 3796346880

約数和(自身を除く): 1239791935

約数列:

[1, 5, 7, 17, 35, 79, 85, 119, 137, 395, 397, 553, 595, 685, 959, 1343, 1985, 2329, 2765, 2779, 4795, 6715, 6749, 9401, 10823, 11645, 13895, 16303, 31363, 33745, 47005, 47243, 54115, 54389, 75761, 81515, 156815, 183991, 219541, 236215, 271945, 378805, 380723, 533171, 919955, 924613, 1097705, 1287937, 1903615, 2665855, 3732197, 4296731, 4623065, 6439685, 6472291, 18660985, 21483655, 30077117, 32361455, 73044427, 150385585, 365222135, 511310989, 2556554945]

約数ペア:

[(1, 2556554945), (5, 511310989), (7, 365222135), (17, 150385585), (35, 73044427), (79, 32361455), (85, 30077117), (119, 21483655), (137, 18660985), (395, 6472291), (397, 6439685), (553, 4623065), (595, 4296731), (685, 3732197), (959, 2665855), (1343, 1903615), (1985, 1287937), (2329, 1097705), (2765, 924613), (2779, 919955), (4795, 533171), (6715, 380723), (6749, 378805), (9401, 271945), (10823, 236215), (11645, 219541), (13895, 183991), (16303, 156815), (31363, 81515), (33745, 75761), (47005, 54389), (47243, 54115)]