1990365

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 3507840

約数和(自身を除く): 1517475

約数列:

[1, 3, 5, 13, 15, 39, 59, 65, 173, 177, 195, 295, 519, 767, 865, 885, 2249, 2301, 2595, 3835, 6747, 10207, 11245, 11505, 30621, 33735, 51035, 132691, 153105, 398073, 663455, 1990365]

約数ペア:

[(1, 1990365), (3, 663455), (5, 398073), (13, 153105), (15, 132691), (39, 51035), (59, 33735), (65, 30621), (173, 11505), (177, 11245), (195, 10207), (295, 6747), (519, 3835), (767, 2595), (865, 2301), (885, 2249)]