28940260

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1217}}^1$

素因数の和:1296

約数の個数: 48

約数和(自身を含む): 64456560

約数和(自身を除く): 35516300

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 58, 82, 116, 145, 164, 205, 290, 410, 580, 820, 1189, 1217, 2378, 2434, 4756, 4868, 5945, 6085, 11890, 12170, 23780, 24340, 35293, 49897, 70586, 99794, 141172, 176465, 199588, 249485, 352930, 498970, 705860, 997940, 1447013, 2894026, 5788052, 7235065, 14470130, 28940260]

約数ペア:

[(1, 28940260), (2, 14470130), (4, 7235065), (5, 5788052), (10, 2894026), (20, 1447013), (29, 997940), (41, 705860), (58, 498970), (82, 352930), (116, 249485), (145, 199588), (164, 176465), (205, 141172), (290, 99794), (410, 70586), (580, 49897), (820, 35293), (1189, 24340), (1217, 23780), (2378, 12170), (2434, 11890), (4756, 6085), (4868, 5945)]