1988100184

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{26633}}^1$

素因数の和:26720

約数の個数: 64

約数和(自身を含む): 4500080640

約数和(自身を除く): 2511980456

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 43, 56, 62, 86, 124, 172, 217, 248, 301, 344, 434, 602, 868, 1204, 1333, 1736, 2408, 2666, 5332, 9331, 10664, 18662, 26633, 37324, 53266, 74648, 106532, 186431, 213064, 372862, 745724, 825623, 1145219, 1491448, 1651246, 2290438, 3302492, 4580876, 5779361, 6604984, 8016533, 9161752, 11558722, 16033066, 23117444, 32066132, 35501789, 46234888, 64132264, 71003578, 142007156, 248512523, 284014312, 497025046, 994050092, 1988100184]

約数ペア:

[(1, 1988100184), (2, 994050092), (4, 497025046), (7, 284014312), (8, 248512523), (14, 142007156), (28, 71003578), (31, 64132264), (43, 46234888), (56, 35501789), (62, 32066132), (86, 23117444), (124, 16033066), (172, 11558722), (217, 9161752), (248, 8016533), (301, 6604984), (344, 5779361), (434, 4580876), (602, 3302492), (868, 2290438), (1204, 1651246), (1333, 1491448), (1736, 1145219), (2408, 825623), (2666, 745724), (5332, 372862), (9331, 213064), (10664, 186431), (18662, 106532), (26633, 74648), (37324, 53266)]