18184280

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2789}}^1$

素因数の和:2963

約数の個数: 32

約数和(自身を含む): 41180400

約数和(自身を除く): 22996120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 2789, 3260, 5578, 6520, 11156, 13945, 22312, 27890, 55780, 111560, 454607, 909214, 1818428, 2273035, 3636856, 4546070, 9092140, 18184280]

約数ペア:

[(1, 18184280), (2, 9092140), (4, 4546070), (5, 3636856), (8, 2273035), (10, 1818428), (20, 909214), (40, 454607), (163, 111560), (326, 55780), (652, 27890), (815, 22312), (1304, 13945), (1630, 11156), (2789, 6520), (3260, 5578)]