2017257680

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1\times {\mathrm{809}}^1$

素因数の和:1332

約数の個数: 80

約数和(自身を含む): 4772908800

約数和(自身を除く): 2755651120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 439, 568, 710, 809, 878, 1136, 1420, 1618, 1756, 2195, 2840, 3236, 3512, 4045, 4390, 5680, 6472, 7024, 8090, 8780, 12944, 16180, 17560, 31169, 32360, 35120, 57439, 62338, 64720, 114878, 124676, 155845, 229756, 249352, 287195, 311690, 355151, 459512, 498704, 574390, 623380, 710302, 919024, 1148780, 1246760, 1420604, 1775755, 2297560, 2493520, 2841208, 3551510, 4595120, 5682416, 7103020, 14206040, 25215721, 28412080, 50431442, 100862884, 126078605, 201725768, 252157210, 403451536, 504314420, 1008628840, 2017257680]

約数ペア:

[(1, 2017257680), (2, 1008628840), (4, 504314420), (5, 403451536), (8, 252157210), (10, 201725768), (16, 126078605), (20, 100862884), (40, 50431442), (71, 28412080), (80, 25215721), (142, 14206040), (284, 7103020), (355, 5682416), (439, 4595120), (568, 3551510), (710, 2841208), (809, 2493520), (878, 2297560), (1136, 1775755), (1420, 1420604), (1618, 1246760), (1756, 1148780), (2195, 919024), (2840, 710302), (3236, 623380), (3512, 574390), (4045, 498704), (4390, 459512), (5680, 355151), (6472, 311690), (7024, 287195), (8090, 249352), (8780, 229756), (12944, 155845), (16180, 124676), (17560, 114878), (31169, 64720), (32360, 62338), (35120, 57439)]