20727280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37013}}^1$

素因数の和:37033

約数の個数: 40

約数和(自身を含む): 55076832

約数和(自身を除く): 34349552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37013, 74026, 148052, 185065, 259091, 296104, 370130, 518182, 592208, 740260, 1036364, 1295455, 1480520, 2072728, 2590910, 2961040, 4145456, 5181820, 10363640, 20727280]

約数ペア:

[(1, 20727280), (2, 10363640), (4, 5181820), (5, 4145456), (7, 2961040), (8, 2590910), (10, 2072728), (14, 1480520), (16, 1295455), (20, 1036364), (28, 740260), (35, 592208), (40, 518182), (56, 370130), (70, 296104), (80, 259091), (112, 185065), (140, 148052), (280, 74026), (560, 37013)]