81477060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{193993}}^1$

素因数の和:194012

約数の個数: 48

約数和(自身を含む): 260727936

約数和(自身を除く): 179250876

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 193993, 387986, 581979, 775972, 969965, 1163958, 1357951, 1939930, 2327916, 2715902, 2909895, 3879860, 4073853, 5431804, 5819790, 6789755, 8147706, 11639580, 13579510, 16295412, 20369265, 27159020, 40738530, 81477060]

約数ペア:

[(1, 81477060), (2, 40738530), (3, 27159020), (4, 20369265), (5, 16295412), (6, 13579510), (7, 11639580), (10, 8147706), (12, 6789755), (14, 5819790), (15, 5431804), (20, 4073853), (21, 3879860), (28, 2909895), (30, 2715902), (35, 2327916), (42, 1939930), (60, 1357951), (70, 1163958), (84, 969965), (105, 775972), (140, 581979), (210, 387986), (420, 193993)]