20156280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:213

約数の個数: 128

約数和(自身を含む): 64627200

約数和(自身を除く): 44470920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 67, 69, 92, 109, 115, 120, 134, 138, 184, 201, 218, 230, 268, 276, 327, 335, 345, 402, 436, 460, 536, 545, 552, 654, 670, 690, 804, 872, 920, 1005, 1090, 1308, 1340, 1380, 1541, 1608, 1635, 2010, 2180, 2507, 2616, 2680, 2760, 3082, 3270, 4020, 4360, 4623, 5014, 6164, 6540, 7303, 7521, 7705, 8040, 9246, 10028, 12328, 12535, 13080, 14606, 15042, 15410, 18492, 20056, 21909, 23115, 25070, 29212, 30084, 30820, 36515, 36984, 37605, 43818, 46230, 50140, 58424, 60168, 61640, 73030, 75210, 87636, 92460, 100280, 109545, 146060, 150420, 167969, 175272, 184920, 219090, 292120, 300840, 335938, 438180, 503907, 671876, 839845, 876360, 1007814, 1343752, 1679690, 2015628, 2519535, 3359380, 4031256, 5039070, 6718760, 10078140, 20156280]

約数ペア:

[(1, 20156280), (2, 10078140), (3, 6718760), (4, 5039070), (5, 4031256), (6, 3359380), (8, 2519535), (10, 2015628), (12, 1679690), (15, 1343752), (20, 1007814), (23, 876360), (24, 839845), (30, 671876), (40, 503907), (46, 438180), (60, 335938), (67, 300840), (69, 292120), (92, 219090), (109, 184920), (115, 175272), (120, 167969), (134, 150420), (138, 146060), (184, 109545), (201, 100280), (218, 92460), (230, 87636), (268, 75210), (276, 73030), (327, 61640), (335, 60168), (345, 58424), (402, 50140), (436, 46230), (460, 43818), (536, 37605), (545, 36984), (552, 36515), (654, 30820), (670, 30084), (690, 29212), (804, 25070), (872, 23115), (920, 21909), (1005, 20056), (1090, 18492), (1308, 15410), (1340, 15042), (1380, 14606), (1541, 13080), (1608, 12535), (1635, 12328), (2010, 10028), (2180, 9246), (2507, 8040), (2616, 7705), (2680, 7521), (2760, 7303), (3082, 6540), (3270, 6164), (4020, 5014), (4360, 4623)]