278302160

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1\times {\mathrm{563}}^1$

素因数の和:780

約数の個数: 80

約数和(自身を含む): 669707136

約数和(自身を除く): 391404976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 167, 185, 296, 334, 370, 563, 592, 668, 740, 835, 1126, 1336, 1480, 1670, 2252, 2672, 2815, 2960, 3340, 4504, 5630, 6179, 6680, 9008, 11260, 12358, 13360, 20831, 22520, 24716, 30895, 41662, 45040, 49432, 61790, 83324, 94021, 98864, 104155, 123580, 166648, 188042, 208310, 247160, 333296, 376084, 416620, 470105, 494320, 752168, 833240, 940210, 1504336, 1666480, 1880420, 3478777, 3760840, 6957554, 7521680, 13915108, 17393885, 27830216, 34787770, 55660432, 69575540, 139151080, 278302160]

約数ペア:

[(1, 278302160), (2, 139151080), (4, 69575540), (5, 55660432), (8, 34787770), (10, 27830216), (16, 17393885), (20, 13915108), (37, 7521680), (40, 6957554), (74, 3760840), (80, 3478777), (148, 1880420), (167, 1666480), (185, 1504336), (296, 940210), (334, 833240), (370, 752168), (563, 494320), (592, 470105), (668, 416620), (740, 376084), (835, 333296), (1126, 247160), (1336, 208310), (1480, 188042), (1670, 166648), (2252, 123580), (2672, 104155), (2815, 98864), (2960, 94021), (3340, 83324), (4504, 61790), (5630, 49432), (6179, 45040), (6680, 41662), (9008, 30895), (11260, 24716), (12358, 22520), (13360, 20831)]