81928950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1$

素因数の和:159

約数の個数: 144

約数和(自身を含む): 229605840

約数和(自身を除く): 147676890

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 19, 25, 30, 34, 38, 50, 51, 57, 75, 85, 89, 95, 102, 114, 150, 170, 178, 190, 255, 267, 285, 323, 361, 425, 445, 475, 510, 534, 570, 646, 722, 850, 890, 950, 969, 1083, 1275, 1335, 1425, 1513, 1615, 1691, 1805, 1938, 2166, 2225, 2550, 2670, 2850, 3026, 3230, 3382, 3610, 4450, 4539, 4845, 5073, 5415, 6137, 6675, 7565, 8075, 8455, 9025, 9078, 9690, 10146, 10830, 12274, 13350, 15130, 16150, 16910, 18050, 18411, 22695, 24225, 25365, 27075, 28747, 30685, 32129, 36822, 37825, 42275, 45390, 48450, 50730, 54150, 57494, 61370, 64258, 75650, 84550, 86241, 92055, 96387, 113475, 126825, 143735, 153425, 160645, 172482, 184110, 192774, 226950, 253650, 287470, 306850, 321290, 431205, 460275, 481935, 546193, 718675, 803225, 862410, 920550, 963870, 1092386, 1437350, 1606450, 1638579, 2156025, 2409675, 2730965, 3277158, 4312050, 4819350, 5461930, 8192895, 13654825, 16385790, 27309650, 40964475, 81928950]

約数ペア:

[(1, 81928950), (2, 40964475), (3, 27309650), (5, 16385790), (6, 13654825), (10, 8192895), (15, 5461930), (17, 4819350), (19, 4312050), (25, 3277158), (30, 2730965), (34, 2409675), (38, 2156025), (50, 1638579), (51, 1606450), (57, 1437350), (75, 1092386), (85, 963870), (89, 920550), (95, 862410), (102, 803225), (114, 718675), (150, 546193), (170, 481935), (178, 460275), (190, 431205), (255, 321290), (267, 306850), (285, 287470), (323, 253650), (361, 226950), (425, 192774), (445, 184110), (475, 172482), (510, 160645), (534, 153425), (570, 143735), (646, 126825), (722, 113475), (850, 96387), (890, 92055), (950, 86241), (969, 84550), (1083, 75650), (1275, 64258), (1335, 61370), (1425, 57494), (1513, 54150), (1615, 50730), (1691, 48450), (1805, 45390), (1938, 42275), (2166, 37825), (2225, 36822), (2550, 32129), (2670, 30685), (2850, 28747), (3026, 27075), (3230, 25365), (3382, 24225), (3610, 22695), (4450, 18411), (4539, 18050), (4845, 16910), (5073, 16150), (5415, 15130), (6137, 13350), (6675, 12274), (7565, 10830), (8075, 10146), (8455, 9690), (9025, 9078)]