19177520

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4523}}^1$

素因数の和:4589

約数の個数: 40

約数和(自身を含む): 45439056

約数和(自身を除く): 26261536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4523, 9046, 18092, 22615, 36184, 45230, 72368, 90460, 180920, 239719, 361840, 479438, 958876, 1198595, 1917752, 2397190, 3835504, 4794380, 9588760, 19177520]

約数ペア:

[(1, 19177520), (2, 9588760), (4, 4794380), (5, 3835504), (8, 2397190), (10, 1917752), (16, 1198595), (20, 958876), (40, 479438), (53, 361840), (80, 239719), (106, 180920), (212, 90460), (265, 72368), (424, 45230), (530, 36184), (848, 22615), (1060, 18092), (2120, 9046), (4240, 4523)]