20544225

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1109}}^1$

素因数の和:1154

約数の個数: 48

約数和(自身を含む): 38539200

約数和(自身を除く): 17994975

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 195, 247, 285, 325, 475, 741, 975, 1109, 1235, 1425, 3327, 3705, 5545, 6175, 14417, 16635, 18525, 21071, 27725, 43251, 63213, 72085, 83175, 105355, 216255, 273923, 316065, 360425, 526775, 821769, 1081275, 1369615, 1580325, 4108845, 6848075, 20544225]

約数ペア:

[(1, 20544225), (3, 6848075), (5, 4108845), (13, 1580325), (15, 1369615), (19, 1081275), (25, 821769), (39, 526775), (57, 360425), (65, 316065), (75, 273923), (95, 216255), (195, 105355), (247, 83175), (285, 72085), (325, 63213), (475, 43251), (741, 27725), (975, 21071), (1109, 18525), (1235, 16635), (1425, 14417), (3327, 6175), (3705, 5545)]