68078440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{27901}}^1$

素因数の和:27973

約数の個数: 32

約数和(自身を含む): 155693160

約数和(自身を除く): 87614720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 27901, 55802, 111604, 139505, 223208, 279010, 558020, 1116040, 1701961, 3403922, 6807844, 8509805, 13615688, 17019610, 34039220, 68078440]

約数ペア:

[(1, 68078440), (2, 34039220), (4, 17019610), (5, 13615688), (8, 8509805), (10, 6807844), (20, 3403922), (40, 1701961), (61, 1116040), (122, 558020), (244, 279010), (305, 223208), (488, 139505), (610, 111604), (1220, 55802), (2440, 27901)]