19504550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{811}}^1$

素因数の和:873

約数の個数: 48

約数和(自身を含む): 40174512

約数和(自身を除く): 20669962

約数列:

[1, 2, 5, 10, 13, 25, 26, 37, 50, 65, 74, 130, 185, 325, 370, 481, 650, 811, 925, 962, 1622, 1850, 2405, 4055, 4810, 8110, 10543, 12025, 20275, 21086, 24050, 30007, 40550, 52715, 60014, 105430, 150035, 263575, 300070, 390091, 527150, 750175, 780182, 1500350, 1950455, 3900910, 9752275, 19504550]

約数ペア:

[(1, 19504550), (2, 9752275), (5, 3900910), (10, 1950455), (13, 1500350), (25, 780182), (26, 750175), (37, 527150), (50, 390091), (65, 300070), (74, 263575), (130, 150035), (185, 105430), (325, 60014), (370, 52715), (481, 40550), (650, 30007), (811, 24050), (925, 21086), (962, 20275), (1622, 12025), (1850, 10543), (2405, 8110), (4055, 4810)]