399164416

素因数分解:

$2^{10}\times 7^1\times {\mathrm{233}}^1\times {\mathrm{239}}^1$

素因数の和:499

約数の個数: 88

約数和(自身を含む): 919676160

約数和(自身を除く): 520511744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 233, 239, 256, 448, 466, 478, 512, 896, 932, 956, 1024, 1631, 1673, 1792, 1864, 1912, 3262, 3346, 3584, 3728, 3824, 6524, 6692, 7168, 7456, 7648, 13048, 13384, 14912, 15296, 26096, 26768, 29824, 30592, 52192, 53536, 55687, 59648, 61184, 104384, 107072, 111374, 119296, 122368, 208768, 214144, 222748, 238592, 244736, 389809, 417536, 428288, 445496, 779618, 835072, 856576, 890992, 1559236, 1670144, 1713152, 1781984, 3118472, 3563968, 6236944, 7127936, 12473888, 14255872, 24947776, 28511744, 49895552, 57023488, 99791104, 199582208, 399164416]

約数ペア:

[(1, 399164416), (2, 199582208), (4, 99791104), (7, 57023488), (8, 49895552), (14, 28511744), (16, 24947776), (28, 14255872), (32, 12473888), (56, 7127936), (64, 6236944), (112, 3563968), (128, 3118472), (224, 1781984), (233, 1713152), (239, 1670144), (256, 1559236), (448, 890992), (466, 856576), (478, 835072), (512, 779618), (896, 445496), (932, 428288), (956, 417536), (1024, 389809), (1631, 244736), (1673, 238592), (1792, 222748), (1864, 214144), (1912, 208768), (3262, 122368), (3346, 119296), (3584, 111374), (3728, 107072), (3824, 104384), (6524, 61184), (6692, 59648), (7168, 55687), (7456, 53536), (7648, 52192), (13048, 30592), (13384, 29824), (14912, 26768), (15296, 26096)]