128527984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{643}}^1$

素因数の和:726

約数の個数: 60

約数和(自身を含む): 277539528

約数和(自身を除く): 149011544

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 643, 806, 961, 1286, 1612, 1922, 2572, 3224, 3844, 5144, 6448, 7688, 8359, 10288, 12493, 15376, 16718, 19933, 24986, 33436, 39866, 49972, 66872, 79732, 99944, 133744, 159464, 199888, 259129, 318928, 518258, 617923, 1036516, 1235846, 2073032, 2471692, 4146064, 4943384, 8032999, 9886768, 16065998, 32131996, 64263992, 128527984]

約数ペア:

[(1, 128527984), (2, 64263992), (4, 32131996), (8, 16065998), (13, 9886768), (16, 8032999), (26, 4943384), (31, 4146064), (52, 2471692), (62, 2073032), (104, 1235846), (124, 1036516), (208, 617923), (248, 518258), (403, 318928), (496, 259129), (643, 199888), (806, 159464), (961, 133744), (1286, 99944), (1612, 79732), (1922, 66872), (2572, 49972), (3224, 39866), (3844, 33436), (5144, 24986), (6448, 19933), (7688, 16718), (8359, 15376), (10288, 12493)]