201715580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21323}}^1$

素因数の和:21386

約数の個数: 48

約数和(自身を含む): 472881024

約数和(自身を除く): 271165444

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 21323, 42646, 85292, 106615, 213230, 234553, 426460, 469106, 916889, 938212, 1172765, 1833778, 2345530, 3667556, 4584445, 4691060, 9168890, 10085779, 18337780, 20171558, 40343116, 50428895, 100857790, 201715580]

約数ペア:

[(1, 201715580), (2, 100857790), (4, 50428895), (5, 40343116), (10, 20171558), (11, 18337780), (20, 10085779), (22, 9168890), (43, 4691060), (44, 4584445), (55, 3667556), (86, 2345530), (110, 1833778), (172, 1172765), (215, 938212), (220, 916889), (430, 469106), (473, 426460), (860, 234553), (946, 213230), (1892, 106615), (2365, 85292), (4730, 42646), (9460, 21323)]