439728640

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:290

約数の個数: 160

約数和(自身を含む): 1157332176

約数和(自身を除く): 717603536

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 73, 80, 104, 128, 130, 146, 160, 181, 208, 256, 260, 292, 320, 362, 365, 416, 512, 520, 584, 640, 724, 730, 832, 905, 949, 1040, 1168, 1280, 1448, 1460, 1664, 1810, 1898, 2080, 2336, 2353, 2560, 2896, 2920, 3328, 3620, 3796, 4160, 4672, 4706, 4745, 5792, 5840, 6656, 7240, 7592, 8320, 9344, 9412, 9490, 11584, 11680, 11765, 13213, 14480, 15184, 16640, 18688, 18824, 18980, 23168, 23360, 23530, 26426, 28960, 30368, 33280, 37376, 37648, 37960, 46336, 46720, 47060, 52852, 57920, 60736, 66065, 75296, 75920, 92672, 93440, 94120, 105704, 115840, 121472, 132130, 150592, 151840, 171769, 186880, 188240, 211408, 231680, 242944, 264260, 301184, 303680, 343538, 376480, 422816, 463360, 485888, 528520, 602368, 607360, 687076, 752960, 845632, 858845, 1057040, 1204736, 1214720, 1374152, 1505920, 1691264, 1717690, 2114080, 2429440, 2748304, 3011840, 3382528, 3435380, 4228160, 5496608, 6023680, 6765056, 6870760, 8456320, 10993216, 13741520, 16912640, 21986432, 27483040, 33825280, 43972864, 54966080, 87945728, 109932160, 219864320, 439728640]

約数ペア:

[(1, 439728640), (2, 219864320), (4, 109932160), (5, 87945728), (8, 54966080), (10, 43972864), (13, 33825280), (16, 27483040), (20, 21986432), (26, 16912640), (32, 13741520), (40, 10993216), (52, 8456320), (64, 6870760), (65, 6765056), (73, 6023680), (80, 5496608), (104, 4228160), (128, 3435380), (130, 3382528), (146, 3011840), (160, 2748304), (181, 2429440), (208, 2114080), (256, 1717690), (260, 1691264), (292, 1505920), (320, 1374152), (362, 1214720), (365, 1204736), (416, 1057040), (512, 858845), (520, 845632), (584, 752960), (640, 687076), (724, 607360), (730, 602368), (832, 528520), (905, 485888), (949, 463360), (1040, 422816), (1168, 376480), (1280, 343538), (1448, 303680), (1460, 301184), (1664, 264260), (1810, 242944), (1898, 231680), (2080, 211408), (2336, 188240), (2353, 186880), (2560, 171769), (2896, 151840), (2920, 150592), (3328, 132130), (3620, 121472), (3796, 115840), (4160, 105704), (4672, 94120), (4706, 93440), (4745, 92672), (5792, 75920), (5840, 75296), (6656, 66065), (7240, 60736), (7592, 57920), (8320, 52852), (9344, 47060), (9412, 46720), (9490, 46336), (11584, 37960), (11680, 37648), (11765, 37376), (13213, 33280), (14480, 30368), (15184, 28960), (16640, 26426), (18688, 23530), (18824, 23360), (18980, 23168)]