20145956785

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{82163}}^1$

素因数の和:82305

約数の個数: 32

約数和(自身を含む): 26621136000

約数和(自身を除く): 6475179215

約数列:

[1, 5, 19, 29, 89, 95, 145, 445, 551, 1691, 2581, 2755, 8455, 12905, 49039, 82163, 245195, 410815, 1561097, 2382727, 7312507, 7805485, 11913635, 36562535, 45271813, 138937633, 212062703, 226359065, 694688165, 1060313515, 4029191357, 20145956785]

約数ペア:

[(1, 20145956785), (5, 4029191357), (19, 1060313515), (29, 694688165), (89, 226359065), (95, 212062703), (145, 138937633), (445, 45271813), (551, 36562535), (1691, 11913635), (2581, 7805485), (2755, 7312507), (8455, 2382727), (12905, 1561097), (49039, 410815), (82163, 245195)]