20627295

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 36541440

約数和(自身を除く): 15914145

約数列:

[1, 3, 5, 13, 15, 39, 65, 79, 103, 169, 195, 237, 309, 395, 507, 515, 845, 1027, 1185, 1339, 1545, 2535, 3081, 4017, 5135, 6695, 8137, 13351, 15405, 17407, 20085, 24411, 40053, 40685, 52221, 66755, 87035, 105781, 122055, 200265, 261105, 317343, 528905, 1375153, 1586715, 4125459, 6875765, 20627295]

約数ペア:

[(1, 20627295), (3, 6875765), (5, 4125459), (13, 1586715), (15, 1375153), (39, 528905), (65, 317343), (79, 261105), (103, 200265), (169, 122055), (195, 105781), (237, 87035), (309, 66755), (395, 52221), (507, 40685), (515, 40053), (845, 24411), (1027, 20085), (1185, 17407), (1339, 15405), (1545, 13351), (2535, 8137), (3081, 6695), (4017, 5135)]