28556720

素因数分解:

$2^4\times 5^1\times {\mathrm{356959}}^1$

素因数の和:356972

約数の個数: 20

約数和(自身を含む): 66394560

約数和(自身を除く): 37837840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 356959, 713918, 1427836, 1784795, 2855672, 3569590, 5711344, 7139180, 14278360, 28556720]

約数ペア:

[(1, 28556720), (2, 14278360), (4, 7139180), (5, 5711344), (8, 3569590), (10, 2855672), (16, 1784795), (20, 1427836), (40, 713918), (80, 356959)]