67990020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{161881}}^1$

素因数の和:161900

約数の個数: 48

約数和(自身を含む): 217569408

約数和(自身を除く): 149579388

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 161881, 323762, 485643, 647524, 809405, 971286, 1133167, 1618810, 1942572, 2266334, 2428215, 3237620, 3399501, 4532668, 4856430, 5665835, 6799002, 9712860, 11331670, 13598004, 16997505, 22663340, 33995010, 67990020]

約数ペア:

[(1, 67990020), (2, 33995010), (3, 22663340), (4, 16997505), (5, 13598004), (6, 11331670), (7, 9712860), (10, 6799002), (12, 5665835), (14, 4856430), (15, 4532668), (20, 3399501), (21, 3237620), (28, 2428215), (30, 2266334), (35, 1942572), (42, 1618810), (60, 1133167), (70, 971286), (84, 809405), (105, 647524), (140, 485643), (210, 323762), (420, 161881)]