2100156955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{461}}^1\times {\mathrm{643}}^1$

素因数の和:1231

約数の個数: 32

約数和(自身を含む): 2749158720

約数和(自身を除く): 649001765

約数列:

[1, 5, 13, 65, 109, 461, 545, 643, 1417, 2305, 3215, 5993, 7085, 8359, 29965, 41795, 50249, 70087, 251245, 296423, 350435, 653237, 911131, 1482115, 3266185, 3853499, 4555655, 19267495, 32310107, 161550535, 420031391, 2100156955]

約数ペア:

[(1, 2100156955), (5, 420031391), (13, 161550535), (65, 32310107), (109, 19267495), (461, 4555655), (545, 3853499), (643, 3266185), (1417, 1482115), (2305, 911131), (3215, 653237), (5993, 350435), (7085, 296423), (8359, 251245), (29965, 70087), (41795, 50249)]