18380635

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 28728000

約数和(自身を除く): 10347365

約数列:

[1, 5, 7, 13, 29, 35, 49, 65, 91, 145, 199, 203, 245, 377, 455, 637, 995, 1015, 1393, 1421, 1885, 2587, 2639, 3185, 5771, 6965, 7105, 9751, 12935, 13195, 18109, 18473, 28855, 40397, 48755, 75023, 90545, 92365, 126763, 201985, 282779, 375115, 525161, 633815, 1413895, 2625805, 3676127, 18380635]

約数ペア:

[(1, 18380635), (5, 3676127), (7, 2625805), (13, 1413895), (29, 633815), (35, 525161), (49, 375115), (65, 282779), (91, 201985), (145, 126763), (199, 92365), (203, 90545), (245, 75023), (377, 48755), (455, 40397), (637, 28855), (995, 18473), (1015, 18109), (1393, 13195), (1421, 12935), (1885, 9751), (2587, 7105), (2639, 6965), (3185, 5771)]