18184720

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9883}}^1$

素因数の和:9919

約数の個数: 40

約数和(自身を含む): 44122176

約数和(自身を除く): 25937456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 9883, 19766, 39532, 49415, 79064, 98830, 158128, 197660, 227309, 395320, 454618, 790640, 909236, 1136545, 1818472, 2273090, 3636944, 4546180, 9092360, 18184720]

約数ペア:

[(1, 18184720), (2, 9092360), (4, 4546180), (5, 3636944), (8, 2273090), (10, 1818472), (16, 1136545), (20, 909236), (23, 790640), (40, 454618), (46, 395320), (80, 227309), (92, 197660), (115, 158128), (184, 98830), (230, 79064), (368, 49415), (460, 39532), (920, 19766), (1840, 9883)]