161998920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2459}}^1$

素因数の和:2540

約数の個数: 128

約数和(自身を含む): 549072000

約数和(自身を除く): 387073080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 61, 72, 90, 108, 120, 122, 135, 180, 183, 216, 244, 270, 305, 360, 366, 488, 540, 549, 610, 732, 915, 1080, 1098, 1220, 1464, 1647, 1830, 2196, 2440, 2459, 2745, 3294, 3660, 4392, 4918, 5490, 6588, 7320, 7377, 8235, 9836, 10980, 12295, 13176, 14754, 16470, 19672, 21960, 22131, 24590, 29508, 32940, 36885, 44262, 49180, 59016, 65880, 66393, 73770, 88524, 98360, 110655, 132786, 147540, 149999, 177048, 221310, 265572, 295080, 299998, 331965, 442620, 449997, 531144, 599996, 663930, 749995, 885240, 899994, 1199992, 1327860, 1349991, 1499990, 1799988, 2249985, 2655720, 2699982, 2999980, 3599976, 4049973, 4499970, 5399964, 5999960, 6749955, 8099946, 8999940, 10799928, 13499910, 16199892, 17999880, 20249865, 26999820, 32399784, 40499730, 53999640, 80999460, 161998920]

約数ペア:

[(1, 161998920), (2, 80999460), (3, 53999640), (4, 40499730), (5, 32399784), (6, 26999820), (8, 20249865), (9, 17999880), (10, 16199892), (12, 13499910), (15, 10799928), (18, 8999940), (20, 8099946), (24, 6749955), (27, 5999960), (30, 5399964), (36, 4499970), (40, 4049973), (45, 3599976), (54, 2999980), (60, 2699982), (61, 2655720), (72, 2249985), (90, 1799988), (108, 1499990), (120, 1349991), (122, 1327860), (135, 1199992), (180, 899994), (183, 885240), (216, 749995), (244, 663930), (270, 599996), (305, 531144), (360, 449997), (366, 442620), (488, 331965), (540, 299998), (549, 295080), (610, 265572), (732, 221310), (915, 177048), (1080, 149999), (1098, 147540), (1220, 132786), (1464, 110655), (1647, 98360), (1830, 88524), (2196, 73770), (2440, 66393), (2459, 65880), (2745, 59016), (3294, 49180), (3660, 44262), (4392, 36885), (4918, 32940), (5490, 29508), (6588, 24590), (7320, 22131), (7377, 21960), (8235, 19672), (9836, 16470), (10980, 14754), (12295, 13176)]