20147845875

素因数分解:

$3^1\times 5^3\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{331}}^1$

素因数の和:534

約数の個数: 128

約数和(自身を含む): 35709133824

約数和(自身を除く): 15561287949

約数列:

[1, 3, 5, 15, 25, 37, 41, 75, 107, 111, 123, 125, 185, 205, 321, 331, 375, 535, 555, 615, 925, 993, 1025, 1517, 1605, 1655, 2675, 2775, 3075, 3959, 4387, 4551, 4625, 4965, 5125, 7585, 8025, 8275, 11877, 12247, 13161, 13375, 13571, 13875, 15375, 19795, 21935, 22755, 24825, 35417, 36741, 37925, 40125, 40713, 41375, 59385, 61235, 65805, 67855, 98975, 106251, 109675, 113775, 124125, 162319, 177085, 183705, 189625, 203565, 296925, 306175, 329025, 339275, 486957, 494875, 502127, 531255, 548375, 568875, 811595, 885425, 918525, 1017825, 1310429, 1452097, 1484625, 1506381, 1530875, 1645125, 1696375, 2434785, 2510635, 2656275, 3931287, 4057975, 4356291, 4427125, 4592625, 5089125, 6552145, 7260485, 7531905, 12173925, 12553175, 13281375, 19656435, 20289875, 21781455, 32760725, 36302425, 37659525, 53727589, 60869625, 62765875, 98282175, 108907275, 161182767, 163803625, 181512125, 188297625, 268637945, 491410875, 544536375, 805913835, 1343189725, 4029569175, 6715948625, 20147845875]

約数ペア:

[(1, 20147845875), (3, 6715948625), (5, 4029569175), (15, 1343189725), (25, 805913835), (37, 544536375), (41, 491410875), (75, 268637945), (107, 188297625), (111, 181512125), (123, 163803625), (125, 161182767), (185, 108907275), (205, 98282175), (321, 62765875), (331, 60869625), (375, 53727589), (535, 37659525), (555, 36302425), (615, 32760725), (925, 21781455), (993, 20289875), (1025, 19656435), (1517, 13281375), (1605, 12553175), (1655, 12173925), (2675, 7531905), (2775, 7260485), (3075, 6552145), (3959, 5089125), (4387, 4592625), (4551, 4427125), (4625, 4356291), (4965, 4057975), (5125, 3931287), (7585, 2656275), (8025, 2510635), (8275, 2434785), (11877, 1696375), (12247, 1645125), (13161, 1530875), (13375, 1506381), (13571, 1484625), (13875, 1452097), (15375, 1310429), (19795, 1017825), (21935, 918525), (22755, 885425), (24825, 811595), (35417, 568875), (36741, 548375), (37925, 531255), (40125, 502127), (40713, 494875), (41375, 486957), (59385, 339275), (61235, 329025), (65805, 306175), (67855, 296925), (98975, 203565), (106251, 189625), (109675, 183705), (113775, 177085), (124125, 162319)]