20946528

素因数分解:

$2^5\times 3^2\times {\mathrm{257}}^1\times {\mathrm{283}}^1$

素因数の和:556

約数の個数: 72

約数和(自身を含む): 60009768

約数和(自身を除く): 39063240

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 257, 283, 288, 514, 566, 771, 849, 1028, 1132, 1542, 1698, 2056, 2264, 2313, 2547, 3084, 3396, 4112, 4528, 4626, 5094, 6168, 6792, 8224, 9056, 9252, 10188, 12336, 13584, 18504, 20376, 24672, 27168, 37008, 40752, 72731, 74016, 81504, 145462, 218193, 290924, 436386, 581848, 654579, 872772, 1163696, 1309158, 1745544, 2327392, 2618316, 3491088, 5236632, 6982176, 10473264, 20946528]

約数ペア:

[(1, 20946528), (2, 10473264), (3, 6982176), (4, 5236632), (6, 3491088), (8, 2618316), (9, 2327392), (12, 1745544), (16, 1309158), (18, 1163696), (24, 872772), (32, 654579), (36, 581848), (48, 436386), (72, 290924), (96, 218193), (144, 145462), (257, 81504), (283, 74016), (288, 72731), (514, 40752), (566, 37008), (771, 27168), (849, 24672), (1028, 20376), (1132, 18504), (1542, 13584), (1698, 12336), (2056, 10188), (2264, 9252), (2313, 9056), (2547, 8224), (3084, 6792), (3396, 6168), (4112, 5094), (4528, 4626)]