389139968

素因数分解:

$2^9\times 7^2\times {\mathrm{15511}}^1$

素因数の和:15543

約数の個数: 60

約数和(自身を含む): 904520232

約数和(自身を除く): 515380264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 448, 512, 784, 896, 1568, 1792, 3136, 3584, 6272, 12544, 15511, 25088, 31022, 62044, 108577, 124088, 217154, 248176, 434308, 496352, 760039, 868616, 992704, 1520078, 1737232, 1985408, 3040156, 3474464, 3970816, 6080312, 6948928, 7941632, 12160624, 13897856, 24321248, 27795712, 48642496, 55591424, 97284992, 194569984, 389139968]

約数ペア:

[(1, 389139968), (2, 194569984), (4, 97284992), (7, 55591424), (8, 48642496), (14, 27795712), (16, 24321248), (28, 13897856), (32, 12160624), (49, 7941632), (56, 6948928), (64, 6080312), (98, 3970816), (112, 3474464), (128, 3040156), (196, 1985408), (224, 1737232), (256, 1520078), (392, 992704), (448, 868616), (512, 760039), (784, 496352), (896, 434308), (1568, 248176), (1792, 217154), (3136, 124088), (3584, 108577), (6272, 62044), (12544, 31022), (15511, 25088)]