2557120

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:209

約数の個数: 56

約数和(自身を含む): 6236208

約数和(自身を除く): 3679088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 131, 160, 244, 262, 305, 320, 488, 524, 610, 655, 976, 1048, 1220, 1310, 1952, 2096, 2440, 2620, 3904, 4192, 4880, 5240, 7991, 8384, 9760, 10480, 15982, 19520, 20960, 31964, 39955, 41920, 63928, 79910, 127856, 159820, 255712, 319640, 511424, 639280, 1278560, 2557120]

約数ペア:

[(1, 2557120), (2, 1278560), (4, 639280), (5, 511424), (8, 319640), (10, 255712), (16, 159820), (20, 127856), (32, 79910), (40, 63928), (61, 41920), (64, 39955), (80, 31964), (122, 20960), (131, 19520), (160, 15982), (244, 10480), (262, 9760), (305, 8384), (320, 7991), (488, 5240), (524, 4880), (610, 4192), (655, 3904), (976, 2620), (1048, 2440), (1220, 2096), (1310, 1952)]