20280965325

素因数分解:

$3^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{67}}^2\times {\mathrm{1021}}^1$

素因数の和:1227

約数の個数: 72

約数和(自身を含む): 34649969760

約数和(自身を除く): 14369004435

約数列:

[1, 3, 5, 15, 25, 59, 67, 75, 177, 201, 295, 335, 885, 1005, 1021, 1475, 1675, 3063, 3953, 4425, 4489, 5025, 5105, 11859, 13467, 15315, 19765, 22445, 25525, 59295, 60239, 67335, 68407, 76575, 98825, 112225, 180717, 205221, 264851, 296475, 301195, 336675, 342035, 794553, 903585, 1026105, 1324255, 1505975, 1710175, 3972765, 4036013, 4517925, 4583269, 5130525, 6621275, 12108039, 13749807, 19863825, 20180065, 22916345, 60540195, 68749035, 100900325, 114581725, 270412871, 302700975, 343745175, 811238613, 1352064355, 4056193065, 6760321775, 20280965325]

約数ペア:

[(1, 20280965325), (3, 6760321775), (5, 4056193065), (15, 1352064355), (25, 811238613), (59, 343745175), (67, 302700975), (75, 270412871), (177, 114581725), (201, 100900325), (295, 68749035), (335, 60540195), (885, 22916345), (1005, 20180065), (1021, 19863825), (1475, 13749807), (1675, 12108039), (3063, 6621275), (3953, 5130525), (4425, 4583269), (4489, 4517925), (5025, 4036013), (5105, 3972765), (11859, 1710175), (13467, 1505975), (15315, 1324255), (19765, 1026105), (22445, 903585), (25525, 794553), (59295, 342035), (60239, 336675), (67335, 301195), (68407, 296475), (76575, 264851), (98825, 205221), (112225, 180717)]