9900090

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{991}}^1$

素因数の和:1044

約数の個数: 64

約数和(自身を含む): 27141120

約数和(自身を除く): 17241030

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 90, 111, 135, 185, 222, 270, 333, 370, 555, 666, 991, 999, 1110, 1665, 1982, 1998, 2973, 3330, 4955, 4995, 5946, 8919, 9910, 9990, 14865, 17838, 26757, 29730, 36667, 44595, 53514, 73334, 89190, 110001, 133785, 183335, 220002, 267570, 330003, 366670, 550005, 660006, 990009, 1100010, 1650015, 1980018, 3300030, 4950045, 9900090]

約数ペア:

[(1, 9900090), (2, 4950045), (3, 3300030), (5, 1980018), (6, 1650015), (9, 1100010), (10, 990009), (15, 660006), (18, 550005), (27, 366670), (30, 330003), (37, 267570), (45, 220002), (54, 183335), (74, 133785), (90, 110001), (111, 89190), (135, 73334), (185, 53514), (222, 44595), (270, 36667), (333, 29730), (370, 26757), (555, 17838), (666, 14865), (991, 9990), (999, 9910), (1110, 8919), (1665, 5946), (1982, 4995), (1998, 4955), (2973, 3330)]