12970020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{30881}}^1$

素因数の和:30900

約数の個数: 48

約数和(自身を含む): 41505408

約数和(自身を除く): 28535388

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, 30881, 61762, 92643, 123524, 154405, 185286, 216167, 308810, 370572, 432334, 463215, 617620, 648501, 864668, 926430, 1080835, 1297002, 1852860, 2161670, 2594004, 3242505, 4323340, 6485010, 12970020]

約数ペア:

[(1, 12970020), (2, 6485010), (3, 4323340), (4, 3242505), (5, 2594004), (6, 2161670), (7, 1852860), (10, 1297002), (12, 1080835), (14, 926430), (15, 864668), (20, 648501), (21, 617620), (28, 463215), (30, 432334), (35, 370572), (42, 308810), (60, 216167), (70, 185286), (84, 154405), (105, 123524), (140, 92643), (210, 61762), (420, 30881)]