28945180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{3209}}^1$

素因数の和:3270

約数の個数: 48

約数和(自身を含む): 67949280

約数和(自身を除く): 39004100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 3209, 4510, 6418, 9020, 12836, 16045, 32090, 35299, 64180, 70598, 131569, 141196, 176495, 263138, 352990, 526276, 657845, 705980, 1315690, 1447259, 2631380, 2894518, 5789036, 7236295, 14472590, 28945180]

約数ペア:

[(1, 28945180), (2, 14472590), (4, 7236295), (5, 5789036), (10, 2894518), (11, 2631380), (20, 1447259), (22, 1315690), (41, 705980), (44, 657845), (55, 526276), (82, 352990), (110, 263138), (164, 176495), (205, 141196), (220, 131569), (410, 70598), (451, 64180), (820, 35299), (902, 32090), (1804, 16045), (2255, 12836), (3209, 9020), (4510, 6418)]