20306720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18131}}^1$

素因数の和:18153

約数の個数: 48

約数和(自身を含む): 54831168

約数和(自身を除く): 34524448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18131, 36262, 72524, 90655, 126917, 145048, 181310, 253834, 290096, 362620, 507668, 580192, 634585, 725240, 1015336, 1269170, 1450480, 2030672, 2538340, 2900960, 4061344, 5076680, 10153360, 20306720]

約数ペア:

[(1, 20306720), (2, 10153360), (4, 5076680), (5, 4061344), (7, 2900960), (8, 2538340), (10, 2030672), (14, 1450480), (16, 1269170), (20, 1015336), (28, 725240), (32, 634585), (35, 580192), (40, 507668), (56, 362620), (70, 290096), (80, 253834), (112, 181310), (140, 145048), (160, 126917), (224, 90655), (280, 72524), (560, 36262), (1120, 18131)]