27380045

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{197}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 43452288

約数和(自身を除く): 16072243

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 133, 197, 209, 361, 385, 665, 985, 1045, 1379, 1463, 1805, 2167, 2527, 3743, 3971, 6895, 7315, 10835, 12635, 15169, 18715, 19855, 26201, 27797, 41173, 71117, 75845, 131005, 138985, 205865, 288211, 355585, 497819, 782287, 1441055, 2489095, 3911435, 5476009, 27380045]

約数ペア:

[(1, 27380045), (5, 5476009), (7, 3911435), (11, 2489095), (19, 1441055), (35, 782287), (55, 497819), (77, 355585), (95, 288211), (133, 205865), (197, 138985), (209, 131005), (361, 75845), (385, 71117), (665, 41173), (985, 27797), (1045, 26201), (1379, 19855), (1463, 18715), (1805, 15169), (2167, 12635), (2527, 10835), (3743, 7315), (3971, 6895)]