31310480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20599}}^1$

素因数の和:20631

約数の個数: 40

約数和(自身を含む): 76632000

約数和(自身を除く): 45321520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 20599, 41198, 82396, 102995, 164792, 205990, 329584, 391381, 411980, 782762, 823960, 1565524, 1647920, 1956905, 3131048, 3913810, 6262096, 7827620, 15655240, 31310480]

約数ペア:

[(1, 31310480), (2, 15655240), (4, 7827620), (5, 6262096), (8, 3913810), (10, 3131048), (16, 1956905), (19, 1647920), (20, 1565524), (38, 823960), (40, 782762), (76, 411980), (80, 391381), (95, 329584), (152, 205990), (190, 164792), (304, 102995), (380, 82396), (760, 41198), (1520, 20599)]