18078320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17383}}^1$

素因数の和:17409

約数の個数: 40

約数和(自身を含む): 45267936

約数和(自身を除く): 27189616

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17383, 34766, 69532, 86915, 139064, 173830, 225979, 278128, 347660, 451958, 695320, 903916, 1129895, 1390640, 1807832, 2259790, 3615664, 4519580, 9039160, 18078320]

約数ペア:

[(1, 18078320), (2, 9039160), (4, 4519580), (5, 3615664), (8, 2259790), (10, 1807832), (13, 1390640), (16, 1129895), (20, 903916), (26, 695320), (40, 451958), (52, 347660), (65, 278128), (80, 225979), (104, 173830), (130, 139064), (208, 86915), (260, 69532), (520, 34766), (1040, 17383)]