221446216

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1993}}^1$

素因数の和:2078

約数の個数: 64

約数和(自身を含む): 473774400

約数和(自身を除く): 252328184

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 43, 68, 76, 86, 136, 152, 172, 323, 344, 646, 731, 817, 1292, 1462, 1634, 1993, 2584, 2924, 3268, 3986, 5848, 6536, 7972, 13889, 15944, 27778, 33881, 37867, 55556, 67762, 75734, 85699, 111112, 135524, 151468, 171398, 271048, 302936, 342796, 643739, 685592, 1287478, 1456883, 1628281, 2574956, 2913766, 3256562, 5149912, 5827532, 6513124, 11655064, 13026248, 27680777, 55361554, 110723108, 221446216]

約数ペア:

[(1, 221446216), (2, 110723108), (4, 55361554), (8, 27680777), (17, 13026248), (19, 11655064), (34, 6513124), (38, 5827532), (43, 5149912), (68, 3256562), (76, 2913766), (86, 2574956), (136, 1628281), (152, 1456883), (172, 1287478), (323, 685592), (344, 643739), (646, 342796), (731, 302936), (817, 271048), (1292, 171398), (1462, 151468), (1634, 135524), (1993, 111112), (2584, 85699), (2924, 75734), (3268, 67762), (3986, 55556), (5848, 37867), (6536, 33881), (7972, 27778), (13889, 15944)]