20807764975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{823}}^1$

素因数の和:1001

約数の個数: 96

約数和(自身を含む): 30015221760

約数和(自身を除く): 9207456785

約数列:

[1, 5, 17, 19, 25, 31, 85, 95, 101, 155, 323, 425, 475, 505, 527, 589, 775, 823, 1615, 1717, 1919, 2525, 2635, 2945, 3131, 4115, 8075, 8585, 9595, 10013, 13175, 13991, 14725, 15637, 15655, 20575, 25513, 32623, 42925, 47975, 50065, 53227, 59489, 69955, 78185, 78275, 83123, 127565, 163115, 250325, 265829, 266135, 297445, 349775, 390925, 415615, 433721, 484747, 637825, 815575, 1011313, 1329145, 1330675, 1413091, 1487225, 1579337, 2078075, 2168605, 2423735, 2576813, 5056565, 6645725, 7065455, 7896685, 8240699, 10843025, 12118675, 12884065, 25282825, 26848729, 35327275, 39483425, 41203495, 43805821, 48959447, 64420325, 134243645, 206017475, 219029105, 244797235, 671218225, 832310599, 1095145525, 1223986175, 4161552995, 20807764975]

約数ペア:

[(1, 20807764975), (5, 4161552995), (17, 1223986175), (19, 1095145525), (25, 832310599), (31, 671218225), (85, 244797235), (95, 219029105), (101, 206017475), (155, 134243645), (323, 64420325), (425, 48959447), (475, 43805821), (505, 41203495), (527, 39483425), (589, 35327275), (775, 26848729), (823, 25282825), (1615, 12884065), (1717, 12118675), (1919, 10843025), (2525, 8240699), (2635, 7896685), (2945, 7065455), (3131, 6645725), (4115, 5056565), (8075, 2576813), (8585, 2423735), (9595, 2168605), (10013, 2078075), (13175, 1579337), (13991, 1487225), (14725, 1413091), (15637, 1330675), (15655, 1329145), (20575, 1011313), (25513, 815575), (32623, 637825), (42925, 484747), (47975, 433721), (50065, 415615), (53227, 390925), (59489, 349775), (69955, 297445), (78185, 266135), (78275, 265829), (83123, 250325), (127565, 163115)]