61388990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{15233}}^1$

素因数の和:15284

約数の個数: 32

約数和(自身を含む): 122846976

約数和(自身を除く): 61457986

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 15233, 30466, 76165, 152330, 198029, 396058, 472223, 944446, 990145, 1980290, 2361115, 4722230, 6138899, 12277798, 30694495, 61388990]

約数ペア:

[(1, 61388990), (2, 30694495), (5, 12277798), (10, 6138899), (13, 4722230), (26, 2361115), (31, 1980290), (62, 990145), (65, 944446), (130, 472223), (155, 396058), (310, 198029), (403, 152330), (806, 76165), (2015, 30466), (4030, 15233)]