90866720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{81131}}^1$

素因数の和:81153

約数の個数: 48

約数和(自身を含む): 245343168

約数和(自身を除く): 154476448

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, 81131, 162262, 324524, 405655, 567917, 649048, 811310, 1135834, 1298096, 1622620, 2271668, 2596192, 2839585, 3245240, 4543336, 5679170, 6490480, 9086672, 11358340, 12980960, 18173344, 22716680, 45433360, 90866720]

約数ペア:

[(1, 90866720), (2, 45433360), (4, 22716680), (5, 18173344), (7, 12980960), (8, 11358340), (10, 9086672), (14, 6490480), (16, 5679170), (20, 4543336), (28, 3245240), (32, 2839585), (35, 2596192), (40, 2271668), (56, 1622620), (70, 1298096), (80, 1135834), (112, 811310), (140, 649048), (160, 567917), (224, 405655), (280, 324524), (560, 162262), (1120, 81131)]