15976008

素因数分解:

$2^3\times 3^3\times {\mathrm{37}}^1\times {\mathrm{1999}}^1$

素因数の和:2051

約数の個数: 64

約数和(自身を含む): 45600000

約数和(自身を除く): 29623992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 37, 54, 72, 74, 108, 111, 148, 216, 222, 296, 333, 444, 666, 888, 999, 1332, 1998, 1999, 2664, 3996, 3998, 5997, 7992, 7996, 11994, 15992, 17991, 23988, 35982, 47976, 53973, 71964, 73963, 107946, 143928, 147926, 215892, 221889, 295852, 431784, 443778, 591704, 665667, 887556, 1331334, 1775112, 1997001, 2662668, 3994002, 5325336, 7988004, 15976008]

約数ペア:

[(1, 15976008), (2, 7988004), (3, 5325336), (4, 3994002), (6, 2662668), (8, 1997001), (9, 1775112), (12, 1331334), (18, 887556), (24, 665667), (27, 591704), (36, 443778), (37, 431784), (54, 295852), (72, 221889), (74, 215892), (108, 147926), (111, 143928), (148, 107946), (216, 73963), (222, 71964), (296, 53973), (333, 47976), (444, 35982), (666, 23988), (888, 17991), (999, 15992), (1332, 11994), (1998, 7996), (1999, 7992), (2664, 5997), (3996, 3998)]