18268180

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2663}}^1$

素因数の和:2693

約数の個数: 48

約数和(自身を含む): 44755200

約数和(自身を除く): 26487020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2663, 3430, 5326, 6860, 10652, 13315, 18641, 26630, 37282, 53260, 74564, 93205, 130487, 186410, 260974, 372820, 521948, 652435, 913409, 1304870, 1826818, 2609740, 3653636, 4567045, 9134090, 18268180]

約数ペア:

[(1, 18268180), (2, 9134090), (4, 4567045), (5, 3653636), (7, 2609740), (10, 1826818), (14, 1304870), (20, 913409), (28, 652435), (35, 521948), (49, 372820), (70, 260974), (98, 186410), (140, 130487), (196, 93205), (245, 74564), (343, 53260), (490, 37282), (686, 26630), (980, 18641), (1372, 13315), (1715, 10652), (2663, 6860), (3430, 5326)]