28912840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2857}}^1$

素因数の和:2902

約数の個数: 64

約数和(自身を含む): 74079360

約数和(自身を除く): 45166520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2024, 2530, 2857, 5060, 5714, 10120, 11428, 14285, 22856, 28570, 31427, 57140, 62854, 65711, 114280, 125708, 131422, 157135, 251416, 262844, 314270, 328555, 525688, 628540, 657110, 722821, 1257080, 1314220, 1445642, 2628440, 2891284, 3614105, 5782568, 7228210, 14456420, 28912840]

約数ペア:

[(1, 28912840), (2, 14456420), (4, 7228210), (5, 5782568), (8, 3614105), (10, 2891284), (11, 2628440), (20, 1445642), (22, 1314220), (23, 1257080), (40, 722821), (44, 657110), (46, 628540), (55, 525688), (88, 328555), (92, 314270), (110, 262844), (115, 251416), (184, 157135), (220, 131422), (230, 125708), (253, 114280), (440, 65711), (460, 62854), (506, 57140), (920, 31427), (1012, 28570), (1265, 22856), (2024, 14285), (2530, 11428), (2857, 10120), (5060, 5714)]