126769820

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1\times {\mathrm{311}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 271252800

約数和(自身を除く): 144482980

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 229, 311, 356, 445, 458, 622, 890, 916, 1145, 1244, 1555, 1780, 2290, 3110, 4580, 6220, 20381, 27679, 40762, 55358, 71219, 81524, 101905, 110716, 138395, 142438, 203810, 276790, 284876, 356095, 407620, 553580, 712190, 1424380, 6338491, 12676982, 25353964, 31692455, 63384910, 126769820]

約数ペア:

[(1, 126769820), (2, 63384910), (4, 31692455), (5, 25353964), (10, 12676982), (20, 6338491), (89, 1424380), (178, 712190), (229, 553580), (311, 407620), (356, 356095), (445, 284876), (458, 276790), (622, 203810), (890, 142438), (916, 138395), (1145, 110716), (1244, 101905), (1555, 81524), (1780, 71219), (2290, 55358), (3110, 40762), (4580, 27679), (6220, 20381)]