321445360

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1\times {\mathrm{193}}^1$

素因数の和:506

約数の個数: 80

約数和(自身を含む): 762094080

約数和(自身を除く): 440648720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 191, 193, 218, 382, 386, 436, 545, 764, 772, 872, 955, 965, 1090, 1528, 1544, 1744, 1910, 1930, 2180, 3056, 3088, 3820, 3860, 4360, 7640, 7720, 8720, 15280, 15440, 20819, 21037, 36863, 41638, 42074, 73726, 83276, 84148, 104095, 105185, 147452, 166552, 168296, 184315, 208190, 210370, 294904, 333104, 336592, 368630, 416380, 420740, 589808, 737260, 832760, 841480, 1474520, 1665520, 1682960, 2949040, 4018067, 8036134, 16072268, 20090335, 32144536, 40180670, 64289072, 80361340, 160722680, 321445360]

約数ペア:

[(1, 321445360), (2, 160722680), (4, 80361340), (5, 64289072), (8, 40180670), (10, 32144536), (16, 20090335), (20, 16072268), (40, 8036134), (80, 4018067), (109, 2949040), (191, 1682960), (193, 1665520), (218, 1474520), (382, 841480), (386, 832760), (436, 737260), (545, 589808), (764, 420740), (772, 416380), (872, 368630), (955, 336592), (965, 333104), (1090, 294904), (1528, 210370), (1544, 208190), (1744, 184315), (1910, 168296), (1930, 166552), (2180, 147452), (3056, 105185), (3088, 104095), (3820, 84148), (3860, 83276), (4360, 73726), (7640, 42074), (7720, 41638), (8720, 36863), (15280, 21037), (15440, 20819)]