19052540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{577}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 43502592

約数和(自身を除く): 24450052

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 577, 635, 1154, 1270, 1651, 2308, 2540, 2885, 3302, 5770, 6604, 7501, 8255, 11540, 15002, 16510, 30004, 33020, 37505, 73279, 75010, 146558, 150020, 293116, 366395, 732790, 952627, 1465580, 1905254, 3810508, 4763135, 9526270, 19052540]

約数ペア:

[(1, 19052540), (2, 9526270), (4, 4763135), (5, 3810508), (10, 1905254), (13, 1465580), (20, 952627), (26, 732790), (52, 366395), (65, 293116), (127, 150020), (130, 146558), (254, 75010), (260, 73279), (508, 37505), (577, 33020), (635, 30004), (1154, 16510), (1270, 15002), (1651, 11540), (2308, 8255), (2540, 7501), (2885, 6604), (3302, 5770)]