18351830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{641}}^1$

素因数の和:1064

約数の個数: 32

約数和(自身を含む): 37903680

約数和(自身を除く): 19551850

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 409, 641, 818, 1282, 2045, 2863, 3205, 4090, 4487, 5726, 6410, 8974, 14315, 22435, 28630, 44870, 262169, 524338, 1310845, 1835183, 2621690, 3670366, 9175915, 18351830]

約数ペア:

[(1, 18351830), (2, 9175915), (5, 3670366), (7, 2621690), (10, 1835183), (14, 1310845), (35, 524338), (70, 262169), (409, 44870), (641, 28630), (818, 22435), (1282, 14315), (2045, 8974), (2863, 6410), (3205, 5726), (4090, 4487)]