67716405

素因数分解:

$3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2741}}^1$

素因数の和:2819

約数の個数: 40

約数和(自身を含む): 123422904

約数和(自身を除く): 55706499

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 81, 135, 183, 305, 405, 549, 915, 1647, 2741, 2745, 4941, 8223, 8235, 13705, 24669, 24705, 41115, 74007, 123345, 167201, 222021, 370035, 501603, 836005, 1110105, 1504809, 2508015, 4514427, 7524045, 13543281, 22572135, 67716405]

約数ペア:

[(1, 67716405), (3, 22572135), (5, 13543281), (9, 7524045), (15, 4514427), (27, 2508015), (45, 1504809), (61, 1110105), (81, 836005), (135, 501603), (183, 370035), (305, 222021), (405, 167201), (549, 123345), (915, 74007), (1647, 41115), (2741, 24705), (2745, 24669), (4941, 13705), (8223, 8235)]