18223480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{499}}^1$

素因数の和:604

約数の個数: 64

約数和(自身を含む): 45360000

約数和(自身を除く): 27136520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 83, 88, 110, 166, 220, 332, 415, 440, 499, 664, 830, 913, 998, 1660, 1826, 1996, 2495, 3320, 3652, 3992, 4565, 4990, 5489, 7304, 9130, 9980, 10978, 18260, 19960, 21956, 27445, 36520, 41417, 43912, 54890, 82834, 109780, 165668, 207085, 219560, 331336, 414170, 455587, 828340, 911174, 1656680, 1822348, 2277935, 3644696, 4555870, 9111740, 18223480]

約数ペア:

[(1, 18223480), (2, 9111740), (4, 4555870), (5, 3644696), (8, 2277935), (10, 1822348), (11, 1656680), (20, 911174), (22, 828340), (40, 455587), (44, 414170), (55, 331336), (83, 219560), (88, 207085), (110, 165668), (166, 109780), (220, 82834), (332, 54890), (415, 43912), (440, 41417), (499, 36520), (664, 27445), (830, 21956), (913, 19960), (998, 18260), (1660, 10978), (1826, 9980), (1996, 9130), (2495, 7304), (3320, 5489), (3652, 4990), (3992, 4565)]