20191174540

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{384301}}^1$

素因数の和:384418

約数の個数: 48

約数和(自身を含む): 44160911424

約数和(自身を除く): 23969736884

約数列:

[1, 2, 4, 5, 10, 20, 37, 71, 74, 142, 148, 185, 284, 355, 370, 710, 740, 1420, 2627, 5254, 10508, 13135, 26270, 52540, 384301, 768602, 1537204, 1921505, 3843010, 7686020, 14219137, 27285371, 28438274, 54570742, 56876548, 71095685, 109141484, 136426855, 142191370, 272853710, 284382740, 545707420, 1009558727, 2019117454, 4038234908, 5047793635, 10095587270, 20191174540]

約数ペア:

[(1, 20191174540), (2, 10095587270), (4, 5047793635), (5, 4038234908), (10, 2019117454), (20, 1009558727), (37, 545707420), (71, 284382740), (74, 272853710), (142, 142191370), (148, 136426855), (185, 109141484), (284, 71095685), (355, 56876548), (370, 54570742), (710, 28438274), (740, 27285371), (1420, 14219137), (2627, 7686020), (5254, 3843010), (10508, 1921505), (13135, 1537204), (26270, 768602), (52540, 384301)]