20791470

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{547}}^1$

素因数の和:745

約数の個数: 64

約数和(自身を含む): 57447936

約数和(自身を除く): 36656466

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 181, 210, 362, 543, 547, 905, 1086, 1094, 1267, 1641, 1810, 2534, 2715, 2735, 3282, 3801, 3829, 5430, 5470, 6335, 7602, 7658, 8205, 11487, 12670, 16410, 19005, 19145, 22974, 38010, 38290, 57435, 99007, 114870, 198014, 297021, 495035, 594042, 693049, 990070, 1386098, 1485105, 2079147, 2970210, 3465245, 4158294, 6930490, 10395735, 20791470]

約数ペア:

[(1, 20791470), (2, 10395735), (3, 6930490), (5, 4158294), (6, 3465245), (7, 2970210), (10, 2079147), (14, 1485105), (15, 1386098), (21, 990070), (30, 693049), (35, 594042), (42, 495035), (70, 297021), (105, 198014), (181, 114870), (210, 99007), (362, 57435), (543, 38290), (547, 38010), (905, 22974), (1086, 19145), (1094, 19005), (1267, 16410), (1641, 12670), (1810, 11487), (2534, 8205), (2715, 7658), (2735, 7602), (3282, 6335), (3801, 5470), (3829, 5430)]