4638440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1901}}^1$

素因数の和:1973

約数の個数: 32

約数和(自身を含む): 10613160

約数和(自身を除く): 5974720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 1901, 2440, 3802, 7604, 9505, 15208, 19010, 38020, 76040, 115961, 231922, 463844, 579805, 927688, 1159610, 2319220, 4638440]

約数ペア:

[(1, 4638440), (2, 2319220), (4, 1159610), (5, 927688), (8, 579805), (10, 463844), (20, 231922), (40, 115961), (61, 76040), (122, 38020), (244, 19010), (305, 15208), (488, 9505), (610, 7604), (1220, 3802), (1901, 2440)]