90425020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{645893}}^1$

素因数の和:645909

約数の個数: 24

約数和(自身を含む): 217020384

約数和(自身を除く): 126595364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 645893, 1291786, 2583572, 3229465, 4521251, 6458930, 9042502, 12917860, 18085004, 22606255, 45212510, 90425020]

約数ペア:

[(1, 90425020), (2, 45212510), (4, 22606255), (5, 18085004), (7, 12917860), (10, 9042502), (14, 6458930), (20, 4521251), (28, 3229465), (35, 2583572), (70, 1291786), (140, 645893)]