101890645

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 131051520

約数和(自身を除く): 29160875

約数列:

[1, 5, 31, 53, 79, 155, 157, 265, 395, 785, 1643, 2449, 4187, 4867, 8215, 8321, 12245, 12403, 20935, 24335, 41605, 62015, 129797, 257951, 384493, 648985, 657359, 1289755, 1922465, 3286795, 20378129, 101890645]

約数ペア:

[(1, 101890645), (5, 20378129), (31, 3286795), (53, 1922465), (79, 1289755), (155, 657359), (157, 648985), (265, 384493), (395, 257951), (785, 129797), (1643, 62015), (2449, 41605), (4187, 24335), (4867, 20935), (8215, 12403), (8321, 12245)]