18778820520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{1931}}^1\times {\mathrm{81041}}^1$

素因数の和:82986

約数の個数: 64

約数和(自身を含む): 56366331840

約数和(自身を除く): 37587511320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 1931, 3862, 5793, 7724, 9655, 11586, 15448, 19310, 23172, 28965, 38620, 46344, 57930, 77240, 81041, 115860, 162082, 231720, 243123, 324164, 405205, 486246, 648328, 810410, 972492, 1215615, 1620820, 1944984, 2431230, 3241640, 4862460, 9724920, 156490171, 312980342, 469470513, 625960684, 782450855, 938941026, 1251921368, 1564901710, 1877882052, 2347352565, 3129803420, 3755764104, 4694705130, 6259606840, 9389410260, 18778820520]

約数ペア:

[(1, 18778820520), (2, 9389410260), (3, 6259606840), (4, 4694705130), (5, 3755764104), (6, 3129803420), (8, 2347352565), (10, 1877882052), (12, 1564901710), (15, 1251921368), (20, 938941026), (24, 782450855), (30, 625960684), (40, 469470513), (60, 312980342), (120, 156490171), (1931, 9724920), (3862, 4862460), (5793, 3241640), (7724, 2431230), (9655, 1944984), (11586, 1620820), (15448, 1215615), (19310, 972492), (23172, 810410), (28965, 648328), (38620, 486246), (46344, 405205), (57930, 324164), (77240, 243123), (81041, 231720), (115860, 162082)]