12812345

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{971}}^1$

素因数の和:1025

約数の個数: 32

約数和(自身を含む): 19595520

約数和(自身を除く): 6783175

約数列:

[1, 5, 7, 13, 29, 35, 65, 91, 145, 203, 377, 455, 971, 1015, 1885, 2639, 4855, 6797, 12623, 13195, 28159, 33985, 63115, 88361, 140795, 197113, 366067, 441805, 985565, 1830335, 2562469, 12812345]

約数ペア:

[(1, 12812345), (5, 2562469), (7, 1830335), (13, 985565), (29, 441805), (35, 366067), (65, 197113), (91, 140795), (145, 88361), (203, 63115), (377, 33985), (455, 28159), (971, 13195), (1015, 12623), (1885, 6797), (2639, 4855)]