80999820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3719}}^1$

素因数の和:3756

約数の個数: 108

約数和(自身を含む): 270138960

約数和(自身を除く): 189139140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 121, 132, 165, 180, 198, 220, 242, 330, 363, 396, 484, 495, 605, 660, 726, 990, 1089, 1210, 1452, 1815, 1980, 2178, 2420, 3630, 3719, 4356, 5445, 7260, 7438, 10890, 11157, 14876, 18595, 21780, 22314, 33471, 37190, 40909, 44628, 55785, 66942, 74380, 81818, 111570, 122727, 133884, 163636, 167355, 204545, 223140, 245454, 334710, 368181, 409090, 449999, 490908, 613635, 669420, 736362, 818180, 899998, 1227270, 1349997, 1472724, 1799996, 1840905, 2249995, 2454540, 2699994, 3681810, 4049991, 4499990, 5399988, 6749985, 7363620, 8099982, 8999980, 13499970, 16199964, 20249955, 26999940, 40499910, 80999820]

約数ペア:

[(1, 80999820), (2, 40499910), (3, 26999940), (4, 20249955), (5, 16199964), (6, 13499970), (9, 8999980), (10, 8099982), (11, 7363620), (12, 6749985), (15, 5399988), (18, 4499990), (20, 4049991), (22, 3681810), (30, 2699994), (33, 2454540), (36, 2249995), (44, 1840905), (45, 1799996), (55, 1472724), (60, 1349997), (66, 1227270), (90, 899998), (99, 818180), (110, 736362), (121, 669420), (132, 613635), (165, 490908), (180, 449999), (198, 409090), (220, 368181), (242, 334710), (330, 245454), (363, 223140), (396, 204545), (484, 167355), (495, 163636), (605, 133884), (660, 122727), (726, 111570), (990, 81818), (1089, 74380), (1210, 66942), (1452, 55785), (1815, 44628), (1980, 40909), (2178, 37190), (2420, 33471), (3630, 22314), (3719, 21780), (4356, 18595), (5445, 14876), (7260, 11157), (7438, 10890)]