1278560

素因数分解:

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

素因数の和:207

約数の個数: 48

約数和(自身を含む): 3093552

約数和(自身を除く): 1814992

約数列:

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

約数ペア:

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