20118379820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1866269}}^1$

素因数の和:1866303

約数の個数: 72

約数和(自身を含む): 53614204560

約数和(自身を除く): 33495824740

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 10780, 1866269, 3732538, 7465076, 9331345, 13063883, 18662690, 20528959, 26127766, 37325380, 41057918, 52255532, 65319415, 82115836, 91447181, 102644795, 130638830, 143702713, 182894362, 205289590, 261277660, 287405426, 365788724, 410579180, 457235905, 574810852, 718513565, 914471810, 1005918991, 1437027130, 1828943620, 2011837982, 2874054260, 4023675964, 5029594955, 10059189910, 20118379820]

約数ペア:

[(1, 20118379820), (2, 10059189910), (4, 5029594955), (5, 4023675964), (7, 2874054260), (10, 2011837982), (11, 1828943620), (14, 1437027130), (20, 1005918991), (22, 914471810), (28, 718513565), (35, 574810852), (44, 457235905), (49, 410579180), (55, 365788724), (70, 287405426), (77, 261277660), (98, 205289590), (110, 182894362), (140, 143702713), (154, 130638830), (196, 102644795), (220, 91447181), (245, 82115836), (308, 65319415), (385, 52255532), (490, 41057918), (539, 37325380), (770, 26127766), (980, 20528959), (1078, 18662690), (1540, 13063883), (2156, 9331345), (2695, 7465076), (5390, 3732538), (10780, 1866269)]