8464640

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:427

約数の個数: 72

約数和(自身を含む): 21523320

約数和(自身を除く): 13058680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 389, 544, 640, 680, 778, 1088, 1280, 1360, 1556, 1945, 2176, 2720, 3112, 3890, 4352, 5440, 6224, 6613, 7780, 10880, 12448, 13226, 15560, 21760, 24896, 26452, 31120, 33065, 49792, 52904, 62240, 66130, 99584, 105808, 124480, 132260, 211616, 248960, 264520, 423232, 497920, 529040, 846464, 1058080, 1692928, 2116160, 4232320, 8464640]

約数ペア:

[(1, 8464640), (2, 4232320), (4, 2116160), (5, 1692928), (8, 1058080), (10, 846464), (16, 529040), (17, 497920), (20, 423232), (32, 264520), (34, 248960), (40, 211616), (64, 132260), (68, 124480), (80, 105808), (85, 99584), (128, 66130), (136, 62240), (160, 52904), (170, 49792), (256, 33065), (272, 31120), (320, 26452), (340, 24896), (389, 21760), (544, 15560), (640, 13226), (680, 12448), (778, 10880), (1088, 7780), (1280, 6613), (1360, 6224), (1556, 5440), (1945, 4352), (2176, 3890), (2720, 3112)]