38400505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1249}}^1$

素因数の和:1321

約数の個数: 32

約数和(自身を含む): 55440000

約数和(自身を除く): 17039495

約数列:

[1, 5, 11, 13, 43, 55, 65, 143, 215, 473, 559, 715, 1249, 2365, 2795, 6149, 6245, 13739, 16237, 30745, 53707, 68695, 81185, 178607, 268535, 590777, 698191, 893035, 2953885, 3490955, 7680101, 38400505]

約数ペア:

[(1, 38400505), (5, 7680101), (11, 3490955), (13, 2953885), (43, 893035), (55, 698191), (65, 590777), (143, 268535), (215, 178607), (473, 81185), (559, 68695), (715, 53707), (1249, 30745), (2365, 16237), (2795, 13739), (6149, 6245)]