20784433905

素因数分解:

$3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{379}}^1\times {\mathrm{8179}}^1$

素因数の和:8718

約数の個数: 48

約数和(自身を含む): 36368280000

約数和(自身を除く): 15583846095

約数列:

[1, 3, 5, 9, 15, 45, 149, 379, 447, 745, 1137, 1341, 1895, 2235, 3411, 5685, 6705, 8179, 17055, 24537, 40895, 56471, 73611, 122685, 169413, 282355, 368055, 508239, 847065, 1218671, 2541195, 3099841, 3656013, 6093355, 9299523, 10968039, 15499205, 18280065, 27898569, 46497615, 54840195, 139492845, 461876309, 1385628927, 2309381545, 4156886781, 6928144635, 20784433905]

約数ペア:

[(1, 20784433905), (3, 6928144635), (5, 4156886781), (9, 2309381545), (15, 1385628927), (45, 461876309), (149, 139492845), (379, 54840195), (447, 46497615), (745, 27898569), (1137, 18280065), (1341, 15499205), (1895, 10968039), (2235, 9299523), (3411, 6093355), (5685, 3656013), (6705, 3099841), (8179, 2541195), (17055, 1218671), (24537, 847065), (40895, 508239), (56471, 368055), (73611, 282355), (122685, 169413)]