56779775

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:276

約数の個数: 36

約数和(自身を含む): 77606640

約数和(自身を除く): 20826865

約数列:

[1, 5, 13, 25, 65, 89, 151, 169, 325, 445, 755, 845, 1157, 1963, 2225, 3775, 4225, 5785, 9815, 13439, 15041, 25519, 28925, 49075, 67195, 75205, 127595, 174707, 335975, 376025, 637975, 873535, 2271191, 4367675, 11355955, 56779775]

約数ペア:

[(1, 56779775), (5, 11355955), (13, 4367675), (25, 2271191), (65, 873535), (89, 637975), (151, 376025), (169, 335975), (325, 174707), (445, 127595), (755, 75205), (845, 67195), (1157, 49075), (1963, 28925), (2225, 25519), (3775, 15041), (4225, 13439), (5785, 9815)]