20194915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{3203}}^1$

素因数の和:3318

約数の個数: 16

約数和(自身を含む): 26375328

約数和(自身を除く): 6180413

約数列:

[1, 5, 13, 65, 97, 485, 1261, 3203, 6305, 16015, 41639, 208195, 310691, 1553455, 4038983, 20194915]

約数ペア:

[(1, 20194915), (5, 4038983), (13, 1553455), (65, 310691), (97, 208195), (485, 41639), (1261, 16015), (3203, 6305)]