80431380

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{379}}^1$

素因数の和:531

約数の個数: 120

約数和(自身を含む): 254913120

約数和(自身を除く): 174481740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 131, 135, 162, 180, 262, 270, 324, 379, 393, 405, 524, 540, 655, 758, 786, 810, 1137, 1179, 1310, 1516, 1572, 1620, 1895, 1965, 2274, 2358, 2620, 3411, 3537, 3790, 3930, 4548, 4716, 5685, 5895, 6822, 7074, 7580, 7860, 10233, 10611, 11370, 11790, 13644, 14148, 17055, 17685, 20466, 21222, 22740, 23580, 30699, 34110, 35370, 40932, 42444, 49649, 51165, 53055, 61398, 68220, 70740, 99298, 102330, 106110, 122796, 148947, 153495, 198596, 204660, 212220, 248245, 297894, 306990, 446841, 496490, 595788, 613980, 744735, 893682, 992980, 1340523, 1489470, 1787364, 2234205, 2681046, 2978940, 4021569, 4468410, 5362092, 6702615, 8043138, 8936820, 13405230, 16086276, 20107845, 26810460, 40215690, 80431380]

約数ペア:

[(1, 80431380), (2, 40215690), (3, 26810460), (4, 20107845), (5, 16086276), (6, 13405230), (9, 8936820), (10, 8043138), (12, 6702615), (15, 5362092), (18, 4468410), (20, 4021569), (27, 2978940), (30, 2681046), (36, 2234205), (45, 1787364), (54, 1489470), (60, 1340523), (81, 992980), (90, 893682), (108, 744735), (131, 613980), (135, 595788), (162, 496490), (180, 446841), (262, 306990), (270, 297894), (324, 248245), (379, 212220), (393, 204660), (405, 198596), (524, 153495), (540, 148947), (655, 122796), (758, 106110), (786, 102330), (810, 99298), (1137, 70740), (1179, 68220), (1310, 61398), (1516, 53055), (1572, 51165), (1620, 49649), (1895, 42444), (1965, 40932), (2274, 35370), (2358, 34110), (2620, 30699), (3411, 23580), (3537, 22740), (3790, 21222), (3930, 20466), (4548, 17685), (4716, 17055), (5685, 14148), (5895, 13644), (6822, 11790), (7074, 11370), (7580, 10611), (7860, 10233)]