51189880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{182821}}^1$

素因数の和:182839

約数の個数: 32

約数和(自身を含む): 131631840

約数和(自身を除く): 80441960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 182821, 365642, 731284, 914105, 1279747, 1462568, 1828210, 2559494, 3656420, 5118988, 6398735, 7312840, 10237976, 12797470, 25594940, 51189880]

約数ペア:

[(1, 51189880), (2, 25594940), (4, 12797470), (5, 10237976), (7, 7312840), (8, 6398735), (10, 5118988), (14, 3656420), (20, 2559494), (28, 1828210), (35, 1462568), (40, 1279747), (56, 914105), (70, 731284), (140, 365642), (280, 182821)]