280348160

素因数分解:

$2^9\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2671}}^1$

素因数の和:2735

約数の個数: 80

約数和(自身を含む): 688830912

約数和(自身を除く): 408482752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 512, 640, 656, 820, 1280, 1312, 1640, 2560, 2624, 2671, 3280, 5248, 5342, 6560, 10496, 10684, 13120, 13355, 20992, 21368, 26240, 26710, 42736, 52480, 53420, 85472, 104960, 106840, 109511, 170944, 213680, 219022, 341888, 427360, 438044, 547555, 683776, 854720, 876088, 1095110, 1367552, 1709440, 1752176, 2190220, 3418880, 3504352, 4380440, 6837760, 7008704, 8760880, 14017408, 17521760, 28034816, 35043520, 56069632, 70087040, 140174080, 280348160]

約数ペア:

[(1, 280348160), (2, 140174080), (4, 70087040), (5, 56069632), (8, 35043520), (10, 28034816), (16, 17521760), (20, 14017408), (32, 8760880), (40, 7008704), (41, 6837760), (64, 4380440), (80, 3504352), (82, 3418880), (128, 2190220), (160, 1752176), (164, 1709440), (205, 1367552), (256, 1095110), (320, 876088), (328, 854720), (410, 683776), (512, 547555), (640, 438044), (656, 427360), (820, 341888), (1280, 219022), (1312, 213680), (1640, 170944), (2560, 109511), (2624, 106840), (2671, 104960), (3280, 85472), (5248, 53420), (5342, 52480), (6560, 42736), (10496, 26710), (10684, 26240), (13120, 21368), (13355, 20992)]