28887540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:230

約数の個数: 144

約数和(自身を含む): 93308544

約数和(自身を除く): 64421004

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 23, 30, 33, 44, 46, 55, 60, 66, 69, 92, 110, 115, 121, 132, 138, 165, 173, 220, 230, 242, 253, 276, 330, 345, 346, 363, 460, 484, 506, 519, 605, 660, 690, 692, 726, 759, 865, 1012, 1038, 1210, 1265, 1380, 1452, 1518, 1730, 1815, 1903, 2076, 2420, 2530, 2595, 2783, 3036, 3460, 3630, 3795, 3806, 3979, 5060, 5190, 5566, 5709, 7260, 7590, 7612, 7958, 8349, 9515, 10380, 11132, 11418, 11937, 13915, 15180, 15916, 16698, 19030, 19895, 20933, 22836, 23874, 27830, 28545, 33396, 38060, 39790, 41745, 41866, 43769, 47748, 55660, 57090, 59685, 62799, 79580, 83490, 83732, 87538, 104665, 114180, 119370, 125598, 131307, 166980, 175076, 209330, 218845, 238740, 251196, 262614, 313995, 418660, 437690, 481459, 525228, 627990, 656535, 875380, 962918, 1255980, 1313070, 1444377, 1925836, 2407295, 2626140, 2888754, 4814590, 5777508, 7221885, 9629180, 14443770, 28887540]

約数ペア:

[(1, 28887540), (2, 14443770), (3, 9629180), (4, 7221885), (5, 5777508), (6, 4814590), (10, 2888754), (11, 2626140), (12, 2407295), (15, 1925836), (20, 1444377), (22, 1313070), (23, 1255980), (30, 962918), (33, 875380), (44, 656535), (46, 627990), (55, 525228), (60, 481459), (66, 437690), (69, 418660), (92, 313995), (110, 262614), (115, 251196), (121, 238740), (132, 218845), (138, 209330), (165, 175076), (173, 166980), (220, 131307), (230, 125598), (242, 119370), (253, 114180), (276, 104665), (330, 87538), (345, 83732), (346, 83490), (363, 79580), (460, 62799), (484, 59685), (506, 57090), (519, 55660), (605, 47748), (660, 43769), (690, 41866), (692, 41745), (726, 39790), (759, 38060), (865, 33396), (1012, 28545), (1038, 27830), (1210, 23874), (1265, 22836), (1380, 20933), (1452, 19895), (1518, 19030), (1730, 16698), (1815, 15916), (1903, 15180), (2076, 13915), (2420, 11937), (2530, 11418), (2595, 11132), (2783, 10380), (3036, 9515), (3460, 8349), (3630, 7958), (3795, 7612), (3806, 7590), (3979, 7260), (5060, 5709), (5190, 5566)]