64894240

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^2\times {\mathrm{109}}^1$

素因数の和:246

約数の個数: 72

約数和(自身を含む): 157297140

約数和(自身を除く): 92402900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 109, 122, 160, 218, 244, 305, 436, 488, 545, 610, 872, 976, 1090, 1220, 1744, 1952, 2180, 2440, 3488, 3721, 4360, 4880, 6649, 7442, 8720, 9760, 13298, 14884, 17440, 18605, 26596, 29768, 33245, 37210, 53192, 59536, 66490, 74420, 106384, 119072, 132980, 148840, 212768, 265960, 297680, 405589, 531920, 595360, 811178, 1063840, 1622356, 2027945, 3244712, 4055890, 6489424, 8111780, 12978848, 16223560, 32447120, 64894240]

約数ペア:

[(1, 64894240), (2, 32447120), (4, 16223560), (5, 12978848), (8, 8111780), (10, 6489424), (16, 4055890), (20, 3244712), (32, 2027945), (40, 1622356), (61, 1063840), (80, 811178), (109, 595360), (122, 531920), (160, 405589), (218, 297680), (244, 265960), (305, 212768), (436, 148840), (488, 132980), (545, 119072), (610, 106384), (872, 74420), (976, 66490), (1090, 59536), (1220, 53192), (1744, 37210), (1952, 33245), (2180, 29768), (2440, 26596), (3488, 18605), (3721, 17440), (4360, 14884), (4880, 13298), (6649, 9760), (7442, 8720)]