1991840

素因数分解:

$2^5\times 5^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:285

約数の個数: 48

約数和(自身を含む): 4808160

約数和(自身を除く): 2816320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 80, 118, 160, 211, 236, 295, 422, 472, 590, 844, 944, 1055, 1180, 1688, 1888, 2110, 2360, 3376, 4220, 4720, 6752, 8440, 9440, 12449, 16880, 24898, 33760, 49796, 62245, 99592, 124490, 199184, 248980, 398368, 497960, 995920, 1991840]

約数ペア:

[(1, 1991840), (2, 995920), (4, 497960), (5, 398368), (8, 248980), (10, 199184), (16, 124490), (20, 99592), (32, 62245), (40, 49796), (59, 33760), (80, 24898), (118, 16880), (160, 12449), (211, 9440), (236, 8440), (295, 6752), (422, 4720), (472, 4220), (590, 3376), (844, 2360), (944, 2110), (1055, 1888), (1180, 1688)]