20163371840

素因数分解:

$2^6\times 5^1\times {\mathrm{157}}^1\times {\mathrm{401341}}^1$

素因数の和:401515

約数の個数: 56

約数和(自身を含む): 48319971432

約数和(自身を除く): 28156599592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 157, 160, 314, 320, 628, 785, 1256, 1570, 2512, 3140, 5024, 6280, 10048, 12560, 25120, 50240, 401341, 802682, 1605364, 2006705, 3210728, 4013410, 6421456, 8026820, 12842912, 16053640, 25685824, 32107280, 63010537, 64214560, 126021074, 128429120, 252042148, 315052685, 504084296, 630105370, 1008168592, 1260210740, 2016337184, 2520421480, 4032674368, 5040842960, 10081685920, 20163371840]

約数ペア:

[(1, 20163371840), (2, 10081685920), (4, 5040842960), (5, 4032674368), (8, 2520421480), (10, 2016337184), (16, 1260210740), (20, 1008168592), (32, 630105370), (40, 504084296), (64, 315052685), (80, 252042148), (157, 128429120), (160, 126021074), (314, 64214560), (320, 63010537), (628, 32107280), (785, 25685824), (1256, 16053640), (1570, 12842912), (2512, 8026820), (3140, 6421456), (5024, 4013410), (6280, 3210728), (10048, 2006705), (12560, 1605364), (25120, 802682), (50240, 401341)]